MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Magnetic Resonance Imaging Clinics of North America' source. Sat, 20 Mar 2010 15:17:24 +0100 http://www.medworm.com/index.php?rid=3054921&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001536%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054921 Fri, 04 Dec 2009 15:02:17 +0100 3054921 http://www.medworm.com/index.php?rid=3054920&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900141X%2Fabstract%3Frss%3Dyes This article discusses recent advances in clinical multimodality imaging, the role of correlative fusion imaging in a clinical setting, and future opportunities and challenges facing the adoption of multimodality imaging. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054920 Fri, 04 Dec 2009 15:02:17 +0100 3054920 http://www.medworm.com/index.php?rid=3054919&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001408%2Fabstract%3Frss%3Dyes With cognitive disorders increasingly common, clinicians urgently need faster and more accurate tools to classify such disorders and to noninvasively monitor therapeutic interventions. In this review, we provide information on MRI techniques that enable the study of the morphology, neuronal integrity, and metabolism of dementing illnesses. In addition, we explore the usefulness of such techniques as surrogate markers of these diseases. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054919 Fri, 04 Dec 2009 15:02:17 +0100 3054919 http://www.medworm.com/index.php?rid=3054918&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001391%2Fabstract%3Frss%3Dyes This article gives an overview on the standard MR imaging techniques used for diagnosis of hip osteoarthritis and their implications for surgery. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054918 Fri, 04 Dec 2009 15:02:17 +0100 3054918 http://www.medworm.com/index.php?rid=3054917&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900138X%2Fabstract%3Frss%3Dyes Whole-organ assessment of a joint with osteoarthritis (OA) requires tailored MR imaging hardware and imaging protocols to diagnose and monitor degenerative disease of the cartilage, menisci, bone marrow, ligaments, and tendons. Image quality benefits from increased field strength, and 3.0-T MR imaging is used increasingly for assessing joints with OA. Dedicated surface coils are required for best visualization of joints affected by OA, and the use of multichannel phased-array coils with parallel imaging improves image quality and/or shortens acquisition times. Sequences that best show morphologic abnormalities of the whole joint include intermediate-weighted fast-spin echo sequences. Also quantitative sequences have been developed to assess cartilage volume and thickness and to analyze car... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054917 Fri, 04 Dec 2009 15:02:17 +0100 3054917 http://www.medworm.com/index.php?rid=3054916&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001378%2Fabstract%3Frss%3Dyes This article reviews imaging features of lymphoma of bone, muscles, cutaneous, and subcutaneous tissue. At radiography, lymphoma of the bone is most commonly lytic, but the affected bone also can appear deceivingly normal, even when a large tumor is present. At CT, lymphoma of muscle can be homogenous in attenuation, and it may not show contrast enhancement, making tumor detection more difficult. Post-treatment changes often are encountered at MR imaging and positron emission tomography, and when considered in light of the patient's therapy regimen (eg, radiation therapy and granulocyte-colony stimulating factor), they usually can be differentiated from tumor. Post-treatment changes include diffuse FDG uptake in marrow after chemotherapy, indicating rebound of normal marrow, and MR imaging... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054916 Fri, 04 Dec 2009 15:02:17 +0100 3054916 http://www.medworm.com/index.php?rid=3054915&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001366%2Fabstract%3Frss%3Dyes Breast MRI has become an integral component in breast imaging. Indications have become clearer and better defined. Guidelines and recommendations are evolving and many are recognized and published. Future applications are exciting and may possibly improve our ability to diagnose breast cancer, improving the patient's treatment options and ultimately patient outcome. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054915 Fri, 04 Dec 2009 15:02:17 +0100 3054915 http://www.medworm.com/index.php?rid=3054914&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001354%2Fabstract%3Frss%3Dyes This article reviews and illustrates present MR imaging methods for evaluation of the aorta. Common diseases of the aorta also are discussed with a focus on their unique morphologic and functional features and characteristic MR imaging findings. Knowledge of pathologic conditions of common aortic diseases and proper MR imaging techniques enables accurate and time-efficient aortic evaluation. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054914 Fri, 04 Dec 2009 15:02:17 +0100 3054914 http://www.medworm.com/index.php?rid=3054913&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001342%2Fabstract%3Frss%3Dyes MR nephrourography (MRNU) makes it possible to obtain structural and functional data within a single imaging examination without using ionizing radiation. The functional data available with MRNU allows renal physiology to be examined in ways that were not possible previously. Coupled with the exquisite soft-tissue contrast provided by standard MR images, MRNU can provide a comprehensive study that yields critical diagnostic information on structural diseases of the kidneys and collecting system, including congenital and acquired diseases, and also on the full range of the causes of dysfunction in the transplanted kidney. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054913 Fri, 04 Dec 2009 15:02:16 +0100 3054913 http://www.medworm.com/index.php?rid=3054912&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001330%2Fabstract%3Frss%3Dyes MR imaging-guided interventions are well established in routine patient care in many parts of the world. There are many approaches, depending on magnet design and clinical need, based on MR imaging providing excellent inherent tissue contrast without ionizing radiation risk for patients. MR imaging-guided minimally invasive therapeutic procedures have advantages over conventional surgical procedures. In the genitourinary tract, MR imaging guidance has a role in tumor detection, localization, and staging and can provide accurate image guidance for minimally invasive procedures. The advent of molecular and metabolic imaging and use of higher strength magnets likely will improve diagnostic accuracy and allow targeted therapy to maximize disease control and minimize side effects. (Source: Magn... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054912 Fri, 04 Dec 2009 15:02:16 +0100 3054912 http://www.medworm.com/index.php?rid=3054911&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001329%2Fabstract%3Frss%3Dyes This article discusses the various systems that have been designed over the last decade to meet the requirements of neurosurgical patients and opines on the potential future developments in the technology and application of intraoperative MRI. Because the greatest amount of experience with intraoperative MRI comes from its use in brain tumor resection, this article focuses on the origins of intraoperative MRI in relation to this field. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054911 Fri, 04 Dec 2009 15:02:16 +0100 3054911 http://www.medworm.com/index.php?rid=3054910&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001457%2Fabstract%3Frss%3Dyes Welcome to three MRI Clinics consulting editors for 2010 and 2011. They are Vivian S. Lee, MD, PhD, MBA; Lynne Steinbach, MD; and Suresh Mukherji, MD. Dr. Lee is Professor of Radiology, Physiology, and Neurosciences; Vice-Dean for Science; and Senior Vice-President and Chief Scientific Officer at New York University Langone Medical Center, New York, New York. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054910 Fri, 04 Dec 2009 15:02:16 +0100 3054910 http://www.medworm.com/index.php?rid=3054909&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001524%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054909 Fri, 04 Dec 2009 15:02:16 +0100 3054909 http://www.medworm.com/index.php?rid=3054908&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001512%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054908 Fri, 04 Dec 2009 15:02:16 +0100 3054908 http://www.medworm.com/index.php?rid=3054907&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001585%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=3054907 Fri, 04 Dec 2009 15:02:16 +0100 3054907 http://www.medworm.com/index.php?rid=2949582&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900124X%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949582 Sun, 01 Nov 2009 00:00:00 +0100 2949582 http://www.medworm.com/index.php?rid=2949581&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001081%2Fabstract%3Frss%3Dyes This article reviews the anatomy in these regions and focuses on common causes of impingement around the ankle; their pathogenesis, clinical features, and management; the approach to imaging of these lesions with MR imaging and their imaging features; and the relevant imaging differential diagnoses. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949581 Sun, 01 Nov 2009 00:00:00 +0100 2949581 http://www.medworm.com/index.php?rid=2949580&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001159%2Fabstract%3Frss%3Dyes This article discusses the spectrum of muscle injuries, emphasizing the important role of MR imaging in their diagnosis and management. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949580 Sun, 01 Nov 2009 00:00:00 +0100 2949580 http://www.medworm.com/index.php?rid=2949579&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001032%2Fabstract%3Frss%3Dyes This article addresses the role of MR imaging in the evaluation of meniscal injuries, with emphasis placed on the common meniscal injuries, including horizontal, longitudinal, radial, and flap tears. An understanding of typical meniscal postoperative findings, together with those factors responsible for the misinterpretation of meniscal abnormalities, is essential for the accurate assessment of MR imaging in the athlete. This article also reviews the common articular cartilage injuries identified in the knee. MR imaging is the imaging modality of choice for the assessment of the menisci and articular cartilage, with the ready availability of MR imaging allowing for the rapid assessment of the injured athlete. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949579 Sun, 01 Nov 2009 00:00:00 +0100 2949579 http://www.medworm.com/index.php?rid=2949578&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001135%2Fabstract%3Frss%3Dyes This article describes the characteristic findings on MR of the common overuse injuries in the knee, including patellar tendinopathy, iliotibial band syndrome, cartilage disorders, medial plica syndrome, and bursitis. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949578 Sun, 01 Nov 2009 00:00:00 +0100 2949578 http://www.medworm.com/index.php?rid=2949577&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900110X%2Fabstract%3Frss%3Dyes This article familiarizes the reader with the normal MR imaging appearance of these structures, and the changes following injury. The posteromedial and posterolateral corners are emphasized because recent research has improved the understanding of their importance, and their repair and reconstruction are becoming more common. Accurate identification of injury is important to ensuring optimal patient outcome. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949577 Sun, 01 Nov 2009 00:00:00 +0100 2949577 http://www.medworm.com/index.php?rid=2949576&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001111%2Fabstract%3Frss%3Dyes Traumatic lesions of the hip in athletes may be clinically challenging because of the overlap in clinical presentation due to differing pathologies and the presence of multiple injuries. Imaging of the hip in the athlete has undergone a recent resurgence of interest and understanding related to the increasing accessibility and use of hip arthroscopy, which expands the treatment options available for intra-articular pathology. MR imaging and MR arthrography have a unique role in diagnosis of these pathologies, guiding the surgeon, arthroscopist, and referring clinician in their management of bony and soft tissue injury. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949576 Sun, 01 Nov 2009 00:00:00 +0100 2949576 http://www.medworm.com/index.php?rid=2949575&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900107X%2Fabstract%3Frss%3Dyes The aim of this article is to emphasize the importance of MR imaging in the evaluation of chronic hip pain and overuse injuries. Image interpretation of the hip can be difficult because of the complex anatomy and the varied pathology that athletes can present with, such as labral and cartilaginous injuries, surrounding soft tissue derangement involving muscles or tendons, and osseous abnormalities. The differential diagnosis in adults is diverse and includes such common entities as stress fracture, avulsive injuries, snapping-hip syndrome, iliopsoas bursitis, femoroacetabular impingement syndrome, tendinosis, and tears of the gluteal musculature. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949575 Sun, 01 Nov 2009 00:00:00 +0100 2949575 http://www.medworm.com/index.php?rid=2949574&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001123%2Fabstract%3Frss%3Dyes This article reviews the relevant anatomy and differential diagnoses encountered in overuse injuries of the groin. The common mechanisms of injury, presenting symptoms, and imaging findings for each diagnosis are addressed. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949574 Sun, 01 Nov 2009 00:00:00 +0100 2949574 http://www.medworm.com/index.php?rid=2949573&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001093%2Fabstract%3Frss%3Dyes This article provides an overview of traumatic and overuse injuries of the hand and wrist in athletes and a review of the MR imaging appearances. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949573 Sun, 01 Nov 2009 00:00:00 +0100 2949573 http://www.medworm.com/index.php?rid=2949572&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001068%2Fabstract%3Frss%3Dyes This article reviews the basic anatomy of the elbow joint and discusses the common osteochondral injuries, ligamentous injuries, instability syndromes, and tendinous pathologies at the elbow joint. The role of imaging in compressive neuropathies is briefly discussed. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949572 Sun, 01 Nov 2009 00:00:00 +0100 2949572 http://www.medworm.com/index.php?rid=2949571&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001044%2Fabstract%3Frss%3Dyes This article reviews imaging of instability-related injuries in athletes, with special emphasis on MR imaging. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949571 Sun, 01 Nov 2009 00:00:00 +0100 2949571 http://www.medworm.com/index.php?rid=2949570&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001056%2Fabstract%3Frss%3Dyes Overuse and impingement syndromes in the shoulders of athletes are predominantly caused by instability of the glenohumeral joint. Glenohumeral joint instability is usually acquired from repetitive overuse of the rotator cuff and shoulder girdle muscles, or injury of the static and dynamic stabilizers of the glenohumeral joint. Congenital hypermobility of the joint may also contribute to these syndromes in some individuals. The throwing action may lead to a cascade of injuries to the static and dynamic stabilizers of the posterosuperior glenohumeral joint, caused by the repetitive, high-energy nature of the action rather than a specific injury. Injury to the anterosuperior stabilizers of the glenohumeral joint may also lead to anterosuperior impingement syndrome. The role of MR in overuse a... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949570 Sun, 01 Nov 2009 00:00:00 +0100 2949570 http://www.medworm.com/index.php?rid=2949569&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001147%2Fabstract%3Frss%3Dyes Musculoskeletal MRI continues to be an ever-expanding field of rapid development and progress, particularly with the increased introduction of 3-Tesla scanners into imaging centers. Elite athletes benefit the most from the recent advancements in our field because of the ready and often immediate access they have to MRI, with most musculoskeletal radiologists enthusiastic to provide their imaging expertise and service. The recreational athlete and the mature athlete have also benefited from the improved resolution of MRI. Mature athletes are particularly susceptible to injury, given their age and their need to be active for the purposes of disease prevention. It is therefore essential that this issue of Magnetic Resonance Imaging Clinics of North America caters to all these athletes. In thi... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949569 Sun, 01 Nov 2009 00:00:00 +0100 2949569 http://www.medworm.com/index.php?rid=2949568&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001238%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949568 Sun, 01 Nov 2009 00:00:00 +0100 2949568 http://www.medworm.com/index.php?rid=2949567&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001226%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949567 Sun, 01 Nov 2009 00:00:00 +0100 2949567 http://www.medworm.com/index.php?rid=2949566&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909001214%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2949566 Sun, 01 Nov 2009 00:00:00 +0100 2949566 http://www.medworm.com/index.php?rid=2482737&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000944%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482737 Wed, 17 Jun 2009 08:17:47 +0100 2482737 http://www.medworm.com/index.php?rid=2482736&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000439%2Fabstract%3Frss%3Dyes This article rounds out the issue on pediatric musculoskeletal MR imaging. It focuses on the evaluation of more common congenital disorders, and mainly sports-related injuries of the shoulder, elbow, and wrist in children. MR imaging can be more challenging in diagnosis of some of these disorders. Features of overuse injuries in skeletally immature athletes are a unifying theme throughout the article. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482736 Wed, 17 Jun 2009 08:17:47 +0100 2482736 http://www.medworm.com/index.php?rid=2482735&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000440%2Fabstract%3Frss%3Dyes This article discusses MR imaging techniques for examining the pediatric foot and ankle, and reviews some common conditions encountered in a child's foot and ankle. This includes lesions such as osteochondritis dissecans; tarsal coalition; soft tissue and bony tumors of the foot and ankle; infection; and clubfoot. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482735 Wed, 17 Jun 2009 08:17:46 +0100 2482735 http://www.medworm.com/index.php?rid=2482734&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000476%2Fabstract%3Frss%3Dyes This article describes MR imaging findings of unique disorders of the pediatric knee, common traumatic injuries, frequent developmental abnormalities, and benign incidental findings. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482734 Wed, 17 Jun 2009 08:17:46 +0100 2482734 http://www.medworm.com/index.php?rid=2482733&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000427%2Fabstract%3Frss%3Dyes Many disease processes can affect the hip joints as a child grows, including developmental dysplasia of the hips; Legg-Calvé-Perthes disease; slipped capital femoral epiphysis; and traumatic, infectious, and noninfectious inflammatory causes. MR imaging is uniquely able to provide information about the structure of the hip joint, and information about active disease states for diagnosing, planning, and assessing therapy. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482733 Wed, 17 Jun 2009 08:17:46 +0100 2482733 http://www.medworm.com/index.php?rid=2482732&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000488%2Fabstract%3Frss%3Dyes This article discusses the role of MR imaging in the evaluation of musculoskeletal soft tissue masses, reviewing limitations in its ability to establish tissue diagnosis and its critical role in determining lesion extent. It also reviews benign soft tissue masses, such as fibrous lesions, popliteal cysts, lipomatous lesions, and neurofibromatous tumors. Reactive entities, such as abscess, myositis ossificans, and hemangioma, are discussed. Differentiation between high- and low-flow vascular and lymphatic anomalies is reviewed. The article concludes with a discussion of the uncommon malignant musculoskeletal soft tissue tumors, focusing on infantile fibrosarcoma, rhabdomyosarcoma, synovial sarcoma, and granulocytic sarcoma. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482732 Wed, 17 Jun 2009 08:17:45 +0100 2482732 http://www.medworm.com/index.php?rid=2482731&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900049X%2Fabstract%3Frss%3Dyes This article provides a review of the MR imaging features of the major primary malignant and benign bone tumors and tumorlike conditions encountered in the pediatric population. Malignant tumors discussed include osteosarcoma, Ewing sarcoma, chondrosarcoma, lymphoma, and malignant fibrous histiocytoma. Benign lesions discussed include simple bone cysts, aneurysmal bone cysts, giant cell tumor, osteochondroma, enchondroma, chondroblastoma, osteoid osteoma, osteoblastoma, nonossifying fibroma, fibrous dysplasia, osteofibrous dysplasia, hemangioma, and histiocytosis. The use of MR imaging in the diagnosis of these lesions is discussed, and the text is enhanced with imaging examples of the lesions. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482731 Wed, 17 Jun 2009 08:17:45 +0100 2482731 http://www.medworm.com/index.php?rid=2482730&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000415%2Fabstract%3Frss%3Dyes This article discusses MR imaging findings of juvenile idiopathic arthritis, enthesis-related arthritis, juvenile psoriatic arthritis, and articular findings in collagen vascular diseases, septic arthritic, hemophilia, neuroarthropathy, and pseudoarthridities. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482730 Wed, 17 Jun 2009 08:17:42 +0100 2482730 http://www.medworm.com/index.php?rid=2482729&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000464%2Fabstract%3Frss%3Dyes Although plain radiography remains the most important and cost-effective imaging for screening and characterizing osseous injuries, it has been well recognized that pediatric fractures can occur without radiographic abnormalities. The superb capability of MR imaging in demonstrating marrow edema, cartilage defects, and soft tissue injuries makes it an essential adjunct in the further evaluation of trauma to the growing skeleton. The key MR imaging findings of growth plate injuries, stress fractures, avulsion injuries, osteochondritis dissecans, transient patellar dislocation, and soft tissue injuries are described in this article. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482729 Wed, 17 Jun 2009 08:17:40 +0100 2482729 http://www.medworm.com/index.php?rid=2482728&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000452%2Fabstract%3Frss%3Dyes Osteomyelitis and inflammatory arthritis affect many children. In this article, the authors describe clinical, pathophysiologic, and imaging characteristics of common (and a few not-so-common) conditions in these categories. Emphasis is placed on MR imaging characteristics, but the article discusses other imaging modalities and clinical evaluation when appropriate. Having a thorough understanding of the pathophysiology and imaging characteristics of these disease processes helps us choose the best radiologic study to answer the clinical questions. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482728 Wed, 17 Jun 2009 08:17:37 +0100 2482728 http://www.medworm.com/index.php?rid=2482727&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000518%2Fabstract%3Frss%3Dyes This article presents the biochemical and histologic features of normal hyaline cartilage and its MR imaging characteristics, followed by a practical approach to optimizing imaging protocols for cartilage imaging. Finally, common abnormalities and advanced hyaline cartilage imaging techniques are described. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482727 Wed, 17 Jun 2009 08:17:34 +0100 2482727 http://www.medworm.com/index.php?rid=2482726&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000403%2Fabstract%3Frss%3Dyes This article provides an overview of the current use of MR imaging in the evaluation of pediatric bone marrow disorders, illustrating their appearance on commonly used MR imaging sequences. Recognition of normal developmental bone marrow changes and variants is important in pediatric MR imaging interpretation, and in selection of appropriate acquisition sequences. This overview should serve as a practical aid in the interpretation of bone marrow lesions in children. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482726 Wed, 17 Jun 2009 08:17:32 +0100 2482726 http://www.medworm.com/index.php?rid=2482725&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000774%2Fabstract%3Frss%3Dyes MR imaging has become a mainstay in the evaluation of pediatric musculoskeletal disorders. In addition to all the well-known advantages MR imaging offers to musculoskeletal imaging in the adult, MR imaging offers special advantages to children. First, MR imaging is superior in visualizing the cartilaginous aspects of the growing skeleton and in imaging the bone marrow. Second, and very importantly, it provides detailed imaging without radiation exposure. Relatively minor disadvantages to pediatric MR imaging include the need for sedation in younger, uncooperative patients and some technical limitations related to the small size of the patient. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482725 Wed, 17 Jun 2009 08:17:28 +0100 2482725 http://www.medworm.com/index.php?rid=2482724&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000841%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482724 Wed, 17 Jun 2009 08:17:28 +0100 2482724 http://www.medworm.com/index.php?rid=2482723&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900083X%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2482723 Wed, 17 Jun 2009 08:17:26 +0100 2482723 http://www.medworm.com/index.php?rid=2379000&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000609%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2379000 Thu, 30 Apr 2009 16:03:29 +0100 2379000 http://www.medworm.com/index.php?rid=2378999&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000142%2Fabstract%3Frss%3Dyes This article concentrates on the role of dynamic contrast-enhanced MR imaging in the evaluation of patients who have prostate cancer and how it might be used to help achieve the above goals. Various dynamic contrast enhancement approaches (quantitative/semiquantitative/qualitative, high temporal versus high spatial resolution) are summarized with reference to the relevant strengths and compromises of each approach. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378999 Thu, 30 Apr 2009 16:03:28 +0100 2378999 http://www.medworm.com/index.php?rid=2378998&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000117%2Fabstract%3Frss%3Dyes This article discusses the basic principles of dynamic contrast-enhanced MR imaging (DCE-MR imaging) of the breast, including technical parameters, image acquisition, and image interpretation. Clinical DCE-MR imaging of the breast has undergone considerable growth from a once investigational technique to an important clinical tool in widespread use. Progress in MR technology and refinement of MR imaging parameters now allow for concurrent acquisition of high-spatial-resolution and adequate-temporal-resolution images, which are necessary for accurate assessment of breast lesion morphology and qualitative kinetic analysis. More advanced DCE-MR imaging techniques involving higher-temporal-resolution images and rigorous quantitative analysis of the time signal enhancement curves are currently ... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378998 Thu, 30 Apr 2009 16:03:28 +0100 2378998 http://www.medworm.com/index.php?rid=2378997&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000105%2Fabstract%3Frss%3Dyes Dynamic contrast-enhanced magnetic resonance imaging (DCE-MR imaging) is emerging as a tool that can quantify changes in liver perfusion that occur in both diffuse and focal liver diseases. Recent data show promise for DCE-MR imaging of the liver in diagnosing fibrosis and cirrhosis before morphologic changes can be detected. It may also be valuable in the assessment of hepatocellular carcinoma and liver metastases. Acquisition parameters, postprocessing methods, applications, and recent results of DCE-MR imaging of the liver are also described. Finally, it reviews the limitations and future directions of DCE-MR imaging for liver applications. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378997 Thu, 30 Apr 2009 16:03:27 +0100 2378997 http://www.medworm.com/index.php?rid=2378996&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000099%2Fabstract%3Frss%3Dyes Arterial spin labeling (ASL) imaging soon will be available as a routine clinical perfusion imaging sequence for a significant number of MR imaging scanners. The ASL perfusion technique offers information similar to that provided by conventional dynamic susceptibility sequences, but it does not require the use of an intravenous contrast agent, and the data can be quantified. The appearance of pathology is affected significantly by the ASL techniques used. Familiarity with the available sequence parameter options and the common appearances of pathology facilitates perfusion interpretation. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378996 Thu, 30 Apr 2009 16:03:26 +0100 2378996 http://www.medworm.com/index.php?rid=2378995&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000154%2Fabstract%3Frss%3Dyes Diffusion and perfusion MR imaging have proven to be highly useful in the clinical description and understanding of acute and hyperacute ischemic stroke. In this article, the authors give a brief overview of the basic concepts of diffusion and perfusion imaging and describe some of the current developments, applications, challenges, and limitations of these techniques as applied to cerebral ischemia. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378995 Thu, 30 Apr 2009 16:03:26 +0100 2378995 http://www.medworm.com/index.php?rid=2378994&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000087%2Fabstract%3Frss%3Dyes Quantitative analysis of dynamic contrast-enhanced MR imaging (DCE-MR imaging) has the power to provide information regarding physiologic characteristics of the microvasculature and is, therefore, of great potential value to the practice of oncology. In particular, these techniques could have a significant impact on the development of novel anticancer therapies as a promising biomarker of drug activity. Standardization of DCE-MR imaging acquisition and analysis to provide more reproducible measures of tumor vessel physiology is of crucial importance to realize this potential. The purpose of this article is to review the pathophysiologic basis and technical aspects of DCE-MR imaging techniques. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378994 Thu, 30 Apr 2009 16:03:25 +0100 2378994 http://www.medworm.com/index.php?rid=2378993&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000063%2Fabstract%3Frss%3Dyes This article focuses on the interesting opportunities of the use of diffusion weighted imaging in the diagnosis of musculoskeletal diseases, including trauma, tumor, and inflammation. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378993 Thu, 30 Apr 2009 16:03:24 +0100 2378993 http://www.medworm.com/index.php?rid=2378992&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000075%2Fabstract%3Frss%3Dyes Diffusion-weighted (DW) imaging provides a new contrast mechanism for evaluation of tumors of the chest, abdominal, and pelvis. By imaging microscopic motion of water molecules, DW imaging yields new qualitative and quantitative information about tumors that can be used to improve tumor detection, characterize some tumors, and monitor and predict response to treatment. DW imaging techniques provide a host of new tools for the body imager including: magnitude DW images; ADC maps with quantitative analysis; and volumetric display of data including whole body diffusion with background suppression. Experience with these DW techniques for body applications is still accumulating. However, DW imaging has already become an integral part of body MR imaging protocols at many centers. (Source: Magnet... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378992 Thu, 30 Apr 2009 16:03:22 +0100 2378992 http://www.medworm.com/index.php?rid=2378991&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900018X%2Fabstract%3Frss%3Dyes This article describes some of the applications of DWI and diffusion-tensor imaging in the evaluation of the diseases of the spinal cord. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378991 Thu, 30 Apr 2009 16:03:21 +0100 2378991 http://www.medworm.com/index.php?rid=2378990&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000178%2Fabstract%3Frss%3Dyes This article surveys current research on the use of diffusion MR imaging for the evaluation of patients who have mild cognitive impairment and AD, and summarizes the important unifying results that are beginning to emerge on the potential role for diffusion imaging in practice. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378990 Thu, 30 Apr 2009 16:03:19 +0100 2378990 http://www.medworm.com/index.php?rid=2378989&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000166%2Fabstract%3Frss%3Dyes This article reviews the technical and clinical issues surrounding presurgical diffusion tractography, including traditional diffusion tensor imaging methods and more advanced high angular resolution diffusion imaging approaches, such as q-ball imaging. An overview of the presurgical diffusion tensor imaging and q-ball tractography protocols used at our institution is also provided. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378989 Thu, 30 Apr 2009 16:03:19 +0100 2378989 http://www.medworm.com/index.php?rid=2378988&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000129%2Fabstract%3Frss%3Dyes This article aims to provide a succinct overview of some of these new developments and a description of some of the major challenges associated with DWI. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378988 Thu, 30 Apr 2009 16:03:18 +0100 2378988 http://www.medworm.com/index.php?rid=2378987&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000506%2Fabstract%3Frss%3Dyes Conventional MR imaging of the brain and body has traditionally relied on standard contrast mechanisms, namely T1- and T2-weighted imaging. In the 1990s, the advent of contrast-enhanced imaging for advanced angiographic and perfusion-weighted imaging (PWI) led to the improved characterization of brain tumors and brain ischemia. During the early to mid 1990s, qualitative diffusion-weighted imaging (DWI) of the brain revolutionized the detection of acute ischemic stroke and the management of ischemic neurological disease. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378987 Thu, 30 Apr 2009 16:03:17 +0100 2378987 http://www.medworm.com/index.php?rid=2378986&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000580%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378986 Thu, 30 Apr 2009 16:03:17 +0100 2378986 http://www.medworm.com/index.php?rid=2378985&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000579%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2378985 Thu, 30 Apr 2009 16:03:17 +0100 2378985 http://www.medworm.com/index.php?rid=2362314&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000282%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362314 Sun, 01 Feb 2009 05:00:00 +0100 2362314 http://www.medworm.com/index.php?rid=2362313&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890900004X%2Fabstract%3Frss%3Dyes This article addresses the relationship between GBCAs and NSF and answers some common questions. The policy deployed at Yale-New Haven Hospital for prevention of NSF and screening for patients at risk is delineated and discussed along with recommendations by the Food and Drug Administration. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362313 Sun, 01 Feb 2009 05:00:00 +0100 2362313 http://www.medworm.com/index.php?rid=2362312&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968908001323%2Fabstract%3Frss%3Dyes Coronary MR imaging is a promising noninvasive technique for the combined assessment of coronary artery anatomy and function. Anomalous coronary arteries and aneurysms can reliably be assessed in clinical practice using coronary MR imaging and the presence of significant left main or proximal multivessel coronary artery disease detected. Technical challenges that need to be addressed are further improvements in motion suppression and abbreviated scanning times aimed at improving spatial resolution and patient comfort. The development of new and specific contrast agents, high-field MR imaging with improved spatial resolution, and continued progress in MR imaging methods development will undoubtedly lead to further progress toward the noninvasive and comprehensive assessment of coronary athe... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362312 Sun, 01 Feb 2009 05:00:00 +0100 2362312 http://www.medworm.com/index.php?rid=2362311&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968908001335%2Fabstract%3Frss%3Dyes This article provides an overview of general pediatric MR angiography techniques, common indications for body MR angiography in children, and the complementary role of MR angiography to other vascular imaging modalities in children, including CT angiography, Doppler ultrasound, and catheter angiography. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362311 Sun, 01 Feb 2009 05:00:00 +0100 2362311 http://www.medworm.com/index.php?rid=2362310&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000026%2Fabstract%3Frss%3Dyes This article discusses the role of magnetic resonance angiography (MRA) in evaluating the pulmonary arterial system. For depiction of pulmonary arterial anatomy and morphology, MRA techniques are compared with CT angiography and digital subtraction x-ray angiography. Perfusion, flow, and function are emphasized, as the integrated MR examination offers a comprehensive assessment of vascular morphology and function. Advances in MR technology that improve spatial and temporal resolution and compensate for potential artifacts are reviewed as they pertain to pulmonary MRA. Current and emerging gadolinium contrast-enhanced and non–contrast-enhanced MRA techniques are discussed. The role of pulmonary MRA, clinical protocols, imaging findings, and interpretation pitfalls are reviewed for clinica... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362310 Sun, 01 Feb 2009 05:00:00 +0100 2362310 http://www.medworm.com/index.php?rid=2362309&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968908001359%2Fabstract%3Frss%3Dyes This article discusses various techniques of peripheral MR angiography, including step-by-step, hybrid, continuous table movement, and non–contrast-enhanced MR angiography. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362309 Sun, 01 Feb 2009 05:00:00 +0100 2362309 http://www.medworm.com/index.php?rid=2362308&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS106496890800130X%2Fabstract%3Frss%3Dyes This article reviews the techniques used to perform four-dimensional CE-MRA and provides an overview of how to use these techniques in CE-MRA of the chest and abdomen. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362308 Sun, 01 Feb 2009 05:00:00 +0100 2362308 http://www.medworm.com/index.php?rid=2362307&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000051%2Fabstract%3Frss%3Dyes This article presents the authors' clinical experience using 4D-MRA to evaluate various vascular abnormalities in the brain, spine, orbits, and neck at 3 T, demonstrates the imaging findings of this novel technique, and discusses its advantages and use in current neuroradiology practice. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362307 Sun, 01 Feb 2009 05:00:00 +0100 2362307 http://www.medworm.com/index.php?rid=2362306&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968908001311%2Fabstract%3Frss%3Dyes By combining filtered phase and magnitude information to create a novel and intrinsic source of contrast, susceptibility-weighted imaging (SWI) has shown great promise in clinical angiography and venography. SWI has contributed to new insights into traumatic brain injury, the role of calcification in atherosclerosis, and the possible relationship between blood settling and deep venous thrombosis. A further contribution from SWI to deep venous thrombosis research (and also stroke) involves its application to the noninvasive measurement of oxygen saturation in the brain and in other tissues. Altogether, SWI offers manifold and diverse avenues for further research using angiographic and venographic techniques. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362306 Sun, 01 Feb 2009 05:00:00 +0100 2362306 http://www.medworm.com/index.php?rid=2362305&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968908001347%2Fabstract%3Frss%3Dyes This article discusses the current state of neurovascular MRA at 3.0T, basic physical differences between MR imaging at 1.5T and 3.0T, and their effects on MRA sequences. The literature regarding the efficacy of 3.0T MRA techniques for diagnosing specific neurovascular pathologies and carotid steno occlusive disease is reviewed. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362305 Sun, 01 Feb 2009 05:00:00 +0100 2362305 http://www.medworm.com/index.php?rid=2362304&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000038%2Fabstract%3Frss%3Dyes Balanced steady-state free precession (Bal-SSFP) techniques produce excellent anatomic images of renal arteries without the use of contrast agents and are relatively flow-insensitive. Electrocardiography (ECG)-triggered and non-ECG-triggered sequences have been shown to be quite sensitive for detection of regional arterial stenosis (RAS), and the already high specificity is likely to increase with further refinement of the techniques. Bal-SSFP sequences can be used as a screening tool or as an alternative to contrast-enhanced (CE) magnetic resonance angiography (MRA) when contrast agents are contraindicated. In addition to morphologic imaging of RAS, non-CE techniques can be used in functional assessment of hemodynamic significance. The complimentary tools can be used alone or in combinati... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362304 Sun, 01 Feb 2009 05:00:00 +0100 2362304 http://www.medworm.com/index.php?rid=2362303&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000130%2Fabstract%3Frss%3Dyes This article provides a brief review of the technical principles of MR angiography. The first section is dedicated to non–contrast-enhanced angiography techniques and includes several distinct approaches: time-of-flight, phase contrast, triggered angiography non–contrast-enhanced, and balanced steady-state free precession. The second section relates to the contrast-enhanced and time-resolved contrast-enhanced MR angiography methods. The latest technical developments in MR imaging hardware, sequences and software, coil technology, and reconstruction capability allow dynamic MR angiography performance similar to CT angiography, without risks of iodine contrast agent and ionizing radiation exposure. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362303 Sun, 01 Feb 2009 05:00:00 +0100 2362303 http://www.medworm.com/index.php?rid=2362302&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000191%2Fabstract%3Frss%3Dyes Over the past 15 years, there have been numerous significant advances in magnetic resonance angiography (MRA). Developments in software and hardware have created the ability to image in near real time and at high resolution. Theoretic improvement in signal to noise of 3T systems is being realized in imaging of small vessels in the head, neck, and abdomen. Combined with parallel imaging and multichannel coils, four dimensional imaging is not only possible, but also is becoming common practice for many clinical applications. (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362302 Sun, 01 Feb 2009 05:00:00 +0100 2362302 http://www.medworm.com/index.php?rid=2362301&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000269%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362301 Sun, 01 Feb 2009 05:00:00 +0100 2362301 http://www.medworm.com/index.php?rid=2362300&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.mri.theclinics.com%2Farticle%2FPIIS1064968909000257%2Fabstract%3Frss%3Dyes (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=2362300 Sun, 01 Feb 2009 05:00:00 +0100 2362300 http://www.medworm.com/index.php?rid=1995474&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926420%26dopt%3DAbstract Authors: Taouli B, Lee VS PMID: 18926420 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1995474 Sat, 01 Nov 2008 04:00:00 +0100 1995474 http://www.medworm.com/index.php?rid=1887849&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926420%26dopt%3DAbstract Authors: Taouli B, Lee VS PMID: 18926420 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887849 Sun, 19 Oct 2008 09:13:53 +0100 1887849 http://www.medworm.com/index.php?rid=1887848&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926421%26dopt%3DAbstract Authors: Thomsen HS, Marckmann P, Logager VB Gadolinium-based contrast agents were for many years considered safe, but this is no longer the case. The least stable agents may trigger the development of nephrogenic systemic fibrosis (NSF), a generalized fibrotic disorder, in renal failure patients. The use of gadodiamide and gadopentetate dimeglumine is now contraindicated in Europe and Japan in patients who have a glomerular filtration rate less than 30 mL/min/1.73 m(2), including those on dialysis. The fear of NSF, however, should not lead to an enhanced MR imaging examination being denied when there is a good clinical indication to give a gadolinium-based contrast agent. PMID: 18926421 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887848 Sun, 19 Oct 2008 09:13:50 +0100 1887848 http://www.medworm.com/index.php?rid=1887847&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926422%26dopt%3DAbstract This article provides an overview of these techniques and discusses their relative merits and shortcomings. Because missing RVH may have serious consequences the most important requirement for an alternative test is that it has high sensitivity. An unresolved issue is the prediction of functional recovery after therapy. PMID: 18926422 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887847 Sun, 19 Oct 2008 09:13:47 +0100 1887847 http://www.medworm.com/index.php?rid=1887846&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926423%26dopt%3DAbstract Authors: Potthast S, Maki JH In this article, we focus on non-contrast magnetic resonance angiography techniques for evaluating renal artery imaging. Time-of-flight, phase contrast, steady-state free procession, and arterial spin labeling are discussed. PMID: 18926423 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887846 Sun, 19 Oct 2008 09:13:44 +0100 1887846 http://www.medworm.com/index.php?rid=1887845&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926424%26dopt%3DAbstract Authors: Kim S, Naik M, Sigmund E, Taouli B There is currently a growing interest in applications of diffusion-weighted imaging (DWI) in the abdomen and pelvis. DWI provides original functional information where the signal and contrast are determined by the microscopic mobility of water. DWI can provide additional information over conventional MR sequences, and could potentially be used as an alternative to contrast-enhanced sequences in patients with chronic renal insufficiency at risk of nephrogenic systemic fibrosis. We provide an overview on basic physics background on DWI applied to the kidneys, and we summarize the current available data, including our recent experience. PMID: 18926424 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887845 Sun, 19 Oct 2008 09:13:40 +0100 1887845 http://www.medworm.com/index.php?rid=1887844&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926425%26dopt%3DAbstract This article reviews the key factors for acquisition and analysis of dynamic contrast-enhanced renal MR imaging (MR renography) and the most significant developments in this field over the past few years. PMID: 18926425 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887844 Sun, 19 Oct 2008 09:13:37 +0100 1887844 http://www.medworm.com/index.php?rid=1887843&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926426%26dopt%3DAbstract This article provides an overview of current state-of-the art of renal BOLD MR imaging. PMID: 18926426 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887843 Sun, 19 Oct 2008 09:13:34 +0100 1887843 http://www.medworm.com/index.php?rid=1887842&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926427%26dopt%3DAbstract This article focuses on preclinical and early clinical applications of renal cell MR imaging, on new developments in MR control of intrarenal gene therapy, and on several potential applications of molecular imaging techniques, mainly targeting cell receptors and enzyme activity, which could find exciting applications within the genitourinary tract. PMID: 18926427 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887842 Sun, 19 Oct 2008 09:13:30 +0100 1887842 http://www.medworm.com/index.php?rid=1887841&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926428%26dopt%3DAbstract Authors: Grattan-Smith JD, Jones RA MR urography has the potential to revolutionize imaging of the urinary tract in both adults and children, because of its ability to provide an unprecedented level of anatomic information and quantitative functional evaluation of each kidney. MR urography can now provide useful assessment of obstructive uropathy and may provide predictive information about which children will benefit from surgery. It has the potential to identify parameters that indicate a significant obstruction as opposed to self-limited hydronephrosis. Further technical developments in the field will produce greater insights into the pathophysiology of not only urologic disorders but also disorders of the kidney itself. PMID: 18926428 [PubMed - in process] (Source: Magnetic Res... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887841 Sun, 19 Oct 2008 09:13:28 +0100 1887841 http://www.medworm.com/index.php?rid=1887840&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926429%26dopt%3DAbstract This article describes the dynamic contrast-enhanced MR imaging technique examines the current and future applications of this technique in patients with ovarian tumors. PMID: 18926429 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887840 Sun, 19 Oct 2008 09:13:25 +0100 1887840 http://www.medworm.com/index.php?rid=1887839&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926430%26dopt%3DAbstract Authors: Nakai A, Koyama T, Fujimoto K, Togashi K Recent developments in MR imaging techniques have enabled the functional assessment of the uterus. Cine MR imaging is a useful tool for evaluating uterine kinematic functions derived from myometrial contractility, and for investigating the alteration of uterine contractility in a variety of conditions and gynecologic disorders. Diffusion-weighted imaging can demonstrate abnormal signal in pathologic foci based on differences in molecular diffusion, and could provide useful information in evaluating malignant conditions. Dynamic contrast-enhanced MR imaging has the potential to improve tumor detection and local staging, and quantitative information may be useful for both monitoring therapeutic effects and predicting outcome. These state-... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887839 Sun, 19 Oct 2008 09:13:22 +0100 1887839 http://www.medworm.com/index.php?rid=1887838&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926431%26dopt%3DAbstract Authors: Somford DM, Fütterer JJ, Hambrock T, Barentsz JO Conventional anatomic MR imaging has evolved to a superior modality in the evaluation of prostate carcinoma and is now a widely established technique in the detection and staging of this disease, aiding in clinical decision making on treatment and therapy evaluation. Recent improvements in functional MR techniques, such as diffusion-weighted MR imaging and dynamic contrast-enhanced MR imaging, have greatly increased the impact of MR imaging in prostate cancer. The combination of T2-weighted imaging, diffusion-weighted MR imaging, and dynamic contrast-enhanced MR imaging may overcome the limitations of conventional T2-weighted MR imaging of the prostate and may be able accurately to detect, localize, stage, and grade prostat... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887838 Sun, 19 Oct 2008 09:13:19 +0100 1887838 http://www.medworm.com/index.php?rid=1887837&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18926432%26dopt%3DAbstract Authors: Kurhanewicz J, Vigneron DB Commercial MR imaging/magnetic resonance spectroscopic imaging (MRSI) packages for staging prostate cancer on 1.5-T MR scanners are now available. The technology is becoming mature enough to begin assessing its clinical utility in selecting, planning, and following prostate cancer therapy. Before therapy, 1.5-T MR imaging/MRSI has the potential to improve the local evaluation of prostate cancer presence and volume and has a significant incremental benefit in the prediction of pathologic stage when added to clinical nomograms. After therapy, two metabolic biomarkers of effective and ineffective therapy have been identified and are being validated with 10-year outcomes. Accuracy can be improved by performing MR imaging/MRSI at higher magnetic field str... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1887837 Sun, 19 Oct 2008 09:13:15 +0100 1887837 http://www.medworm.com/index.php?rid=1810954&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585594%26dopt%3DAbstract Authors: Siegel MJ, Jaramillo D PMID: 18585594 [PubMed - indexed for MEDLINE] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1810954 Fri, 01 Aug 2008 04:00:00 +0100 1810954 http://www.medworm.com/index.php?rid=1559736&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585594%26dopt%3DAbstract Authors: Siegel MJ, Jaramillo D PMID: 18585594 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559736 Wed, 02 Jul 2008 07:44:21 +0100 1559736 http://www.medworm.com/index.php?rid=1559735&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585595%26dopt%3DAbstract This article describes the considerable technical achievements that have been made in MR imaging in the evaluation of pediatric patients. The latest techniques in improving signal intensity, resolution, and speed are discussed. The multitude of new options for pediatric MR imaging are illustrated, including higher field strength imaging, multi-channel coil technology coupled with parallel imaging, and new pulse sequence designs. Several future directions in the field of pediatric body and musculoskeletal imaging also are highlighted. PMID: 18585595 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559735 Wed, 02 Jul 2008 07:44:19 +0100 1559735 http://www.medworm.com/index.php?rid=1559734&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585596%26dopt%3DAbstract Authors: Gutiérrez FR, Ho ML, Siegel MJ Cardiac magnetic resonance is a powerful, rapidly advancing technology that complements other imaging modalities in the noninvasive evaluation of congenital heart disease. Magnetic resonance plays an important role in diagnosis and follow-up by assessing anatomic features, functional effects, and postoperative complications. An understanding of the pathophysiology and imaging characteristics of various congenital heart lesions is essential for effective implementation and accurate interpretation of the cardiac magnetic resonance examination. PMID: 18585596 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559734 Wed, 02 Jul 2008 07:44:17 +0100 1559734 http://www.medworm.com/index.php?rid=1559733&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585597%26dopt%3DAbstract This article addresses the MR imaging appearances of various focal hepatic lesions that can present in children. Techniques for performing hepatic MR imaging also are reviewed. PMID: 18585597 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559733 Wed, 02 Jul 2008 07:44:15 +0100 1559733 http://www.medworm.com/index.php?rid=1559732&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585598%26dopt%3DAbstract This article discusses conventional and advanced MRCP techniques used in children and applications of the techniques in evaluating common diseases of the pancreas and biliary tree. PMID: 18585598 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559732 Wed, 02 Jul 2008 07:44:13 +0100 1559732 http://www.medworm.com/index.php?rid=1559731&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585599%26dopt%3DAbstract Authors: Darge K, Anupindi SA, Jaramillo D Magnetic resonance enterography with oral contrast administration using fast T2-weighted and fat saturated, contrast-enhanced T1-weighted sequences is the most common technique for bowel evaluation. The main indication for bowel MR imaging in children has been evaluation of inflammatory bowel diseases. A less common application is appendicitis. Other potential applications include evaluation of vascular malformations and transplanted bowel. PMID: 18585599 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559731 Wed, 02 Jul 2008 07:44:11 +0100 1559731 http://www.medworm.com/index.php?rid=1559730&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585600%26dopt%3DAbstract This article reviews the biologic, clinical, and MR imaging features of this tumor and other renal tumors that can mimic Wilms' tumor. PMID: 18585600 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559730 Wed, 02 Jul 2008 07:44:09 +0100 1559730 http://www.medworm.com/index.php?rid=1559729&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585601%26dopt%3DAbstract This article reviews the biologic, clinical, and MR imaging features of this tumor. PMID: 18585601 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559729 Wed, 02 Jul 2008 07:44:07 +0100 1559729 http://www.medworm.com/index.php?rid=1559728&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585602%26dopt%3DAbstract This article provides an overview of the technical aspects of MR urography and common clinical applications, such as the evaluation of hydronephrosis, reflux nephropathy, and renal dysplasia. PMID: 18585602 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559728 Wed, 02 Jul 2008 07:44:05 +0100 1559728 http://www.medworm.com/index.php?rid=1559727&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18585603%26dopt%3DAbstract This article discusses the advantages and challenges associated with musculoskeletal MR imaging at 3 T, basic scanning protocols, image optimization techniques, and specific clinical applications in a pediatric population. PMID: 18585603 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1559727 Wed, 02 Jul 2008 07:44:03 +0100 1559727 http://www.medworm.com/index.php?rid=1442327&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474323%26dopt%3DAbstract Authors: Gotway MB PMID: 18474323 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442327 Thu, 01 May 2008 04:00:00 +0100 1442327 http://www.medworm.com/index.php?rid=1442326&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474324%26dopt%3DAbstract Authors: Syed IS, Feng D, Harris SR, Martinez MW, Misselt AJ, Breen JF, Miller DV, Araoz PA Cardiac MR imaging is the preferred method for assessment of cardiac masses. A comprehensive cardiac MR imaging examination for a cardiac mass consists of static morphologic images using fast spin-echo sequences, including single-shot techniques, with T1 and T2 weighting and fat suppression pulses as well as dynamic imaging with cine steady-state free precession techniques. Further tissue characterization is provided with perfusion and delayed enhancement imaging. Specific cardiac tumoral characterization is possible in many cases. When specific tumor characterization is not possible, MR imaging often can demonstrate aggressive versus nonaggressive features that help in differentiating malignant... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442326 Thu, 01 May 2008 04:00:00 +0100 1442326 http://www.medworm.com/index.php?rid=1442325&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474325%26dopt%3DAbstract Authors: Harris SR, Glockner J, Misselt AJ, Syed IS, Araoz PA Cardiomyopathies, diseases of the myocardium associated with cardiac dysfunction, include hypertrophic, restrictive, and dilated forms and rare entities, such as arrhythmogenic right ventricular dysplasia, ventricular noncompaction, and apical ballooning syndrome. Many have similar presentations, but the underlying condition determines prognoses and treatment. Cardiac MR imaging plays a role in characterizing the range of entities and is crucial for evaluation and management. In addition, delayed enhanced imaging can allow differentiation among the forms of cardiomyopathy and offer prognostic information. As the speed and technical ease of cardiac imaging improve, MR imaging will assume an increasing role in the care of pati... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442325 Thu, 01 May 2008 04:00:00 +0100 1442325 http://www.medworm.com/index.php?rid=1442324&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474326%26dopt%3DAbstract Authors: Misselt AJ, Harris SR, Glockner J, Feng D, Syed IS, Araoz PA Imaging of the pericardium requires understanding of anatomy and the normal and abnormal physiology of the pericardium. MR imaging is well-suited for answering clinical questions regarding suspected pericardial disease. Pericardial diseases that may be effectively imaged with MR imaging include pericarditis, pericardial effusion, cardiac-pericardial tamponade, constrictive pericarditis, pericardial cysts, absence of the pericardium, and pericardial masses. Although benign and malignant primary tumors of the pericardium may be occasionally encountered, the most common etiology of a pericardial mass is metastatic disease. PMID: 18474326 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North Amer... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442324 Thu, 01 May 2008 04:00:00 +0100 1442324 http://www.medworm.com/index.php?rid=1442323&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474327%26dopt%3DAbstract Authors: Reddy GP, Pujadas S, Ordovas KG, Higgins CB When ischemic heart disease (IHD) is suspected or confirmed, the primary imaging modality is echocardiography. When appropriate, complementary examinations can be performed. These include stress perfusion scintigraphy, cardiac catheterization, coronary angiography, and CT. MR imaging techniques have developed rapidly over the past several years, and MR imaging has the ability to delineate myocardial perfusion, ventricular function, and myocardial viability in a single examination. Although coronary MR angiography is promising, in recent years it has been supplanted as a noninvasive imaging modality by coronary CT angiography. The other capabilities of MR imaging suggest that it will be performed more and more frequently for the asses... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442323 Thu, 01 May 2008 04:00:00 +0100 1442323 http://www.medworm.com/index.php?rid=1442322&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474328%26dopt%3DAbstract This article considers the current status of MR imaging in evaluation of the thoracic aorta, with reference to common clinical indications in clinical practice. PMID: 18474328 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442322 Thu, 01 May 2008 04:00:00 +0100 1442322 http://www.medworm.com/index.php?rid=1442321&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474329%26dopt%3DAbstract This article considers the current role of TR-MRA in thoracic imaging, illustrating many of its clinical applications, and potential future of this recent approach to noninvasive dynamic vascular evaluation. PMID: 18474329 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442321 Thu, 01 May 2008 04:00:00 +0100 1442321 http://www.medworm.com/index.php?rid=1442320&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474330%26dopt%3DAbstract This article also discusses recent applications of MR imaging in the evaluation of the pulmonary veins and the left atrium in patients who have atrial fibrillation. PMID: 18474330 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442320 Thu, 01 May 2008 04:00:00 +0100 1442320 http://www.medworm.com/index.php?rid=1442319&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474331%26dopt%3DAbstract Authors: Ley S, Kauczor HU Magnetic resonance angiography (MRA) of the pulmonary arteries still is a rapidly evolving technique with already proved high clinical usefulness. Contrast-enhanced and non-contrast-enhanced angiographic techniques are widely available for high spatial or real-time imaging of the pulmonary arteries. Multiple step protocols, such as perfusion MR imaging followed by high spatial resolution contrast-enhanced MRA, seem to be an optimal clinical approach for the assessment of different vascular diseases affecting the pulmonary arteries. This review article describes the MR imaging techniques available and their application in acute and chronic thromboembolic disease. PMID: 18474331 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North Amer... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442319 Thu, 01 May 2008 04:00:00 +0100 1442319 http://www.medworm.com/index.php?rid=1442318&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474332%26dopt%3DAbstract Authors: Matsuoka S, Hunsaker AR, Gill RR, Jacobson FL, Ohno Y, Patz S, Hatabu H Recent development of MR techniques has overcome many problems, such as susceptibility artifacts or motion artifact, allowing both static and dynamic MR lung imaging and providing quantitative information of pulmonary function, including perfusion, ventilation, and respiratory motion. Dynamic contrast-enhanced MR perfusion imaging is suitable for the evaluation of angiogenesis of pulmonary solitary nodules. (129)Xe MR imaging is potentially a robust technique for the evaluation of various pulmonary function and may replace (3)He. The information provided by these new MR imaging methods is proving useful in research and in clinical applications in various lung diseases. PMID: 18474332 [PubMed - in proce... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442318 Thu, 01 May 2008 04:00:00 +0100 1442318 http://www.medworm.com/index.php?rid=1442317&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474333%26dopt%3DAbstract Authors: Ley-Zaporozhan J, Puderbach M, Kauczor HU Obstructive lung diseases include emphysema, chronic bronchitis, chronic obstructive pulmonary disease, asthma, and cystic fibrosis. These diseases are a heterogeneous group of pulmonary disorders that share in common obstruction of air flow and deranged gas exchange. Traditionally these diseases are evaluated with clinical testing, such as pulmonary function tests, but such tests provide only global measures of respiratory function. MR techniques designed for obstructive lung disease have the capability of directly imaging the anatomic and pathophysiologic derangements and may prove useful for monitoring response to therapy. PMID: 18474333 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442317 Thu, 01 May 2008 04:00:00 +0100 1442317 http://www.medworm.com/index.php?rid=1442316&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474334%26dopt%3DAbstract Authors: Godelman A, Haramati LB Lung cancer is the most common cause of cancer-related death for men and women in the United States. Accurate cancer staging is essential for determining appropriate management and predicting prognosis. CT, along with positron emission tomography with fluorodeoxyglucose, currently is the main imaging modality for staging lung cancer. The role of MR imaging is limited, although improvements in MR imaging technology and contrast media potentially will make MR imaging a viable ionizing-radiation-free alternative. PMID: 18474334 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442316 Thu, 01 May 2008 04:00:00 +0100 1442316 http://www.medworm.com/index.php?rid=1442315&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474335%26dopt%3DAbstract Authors: Gill RR, Gerbaudo VH, Jacobson FL, Trotman-Dickenson B, Matsuoka S, Hunsaker A, Sugarbaker DJ, Hatabu H MR imaging serves as a problem-solving tool in the diagnosis of inflammatory and infectious pleural diseases and primary and secondary pleural malignancies. Knowledge of MR imaging appearance of pleural diseases, including pleural effusions and empyema, benign and malignant pleural tumors, and especially mesothelioma, helps guide treatment decisions and surgical planning. PMID: 18474335 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442315 Thu, 01 May 2008 04:00:00 +0100 1442315 http://www.medworm.com/index.php?rid=1442314&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474336%26dopt%3DAbstract Authors: Parker EE, Glastonbury CM The thoracic inlet serves as the junction between the neck and the chest. As such, it is sometimes considered a sort of "no-man's-land" between the well-defined and comfortable territories of the thoracic radiologist and that of the head and neck radiologist. Crucial digestive, respiratory, vascular, lymphatic, and neural structures traverse the thoracic inlet. Endocrine structures also are in close proximity to, and sometimes extend into, the thoracic inlet. Familiarity with the normal anatomy of the thoracic inlet on routine chest or neck imaging, and on dedicated high-resolution examinations of such areas as the brachial plexus, is critical for detection and characterization of pathologic conditions. PMID: 18474336 [PubMed - in process] (Source... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442314 Thu, 01 May 2008 04:00:00 +0100 1442314 http://www.medworm.com/index.php?rid=1442313&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18474337%26dopt%3DAbstract Authors: Lee TJ, Collins J Chest wall lesions constitute a diverse group of thoracic diseases, including those of soft tissue and osseous origin. MR imaging, with its superior tissue-resolving capability and multiplanar image acquisition, is an important tool for assessing chest wall lesions. In this article, the authors review common and uncommon diseases of the chest wall, with an emphasis on the MR imaging characteristics of these diseases. Among the diseases they discuss are diseases of the soft tissue including lipoma, hibernoma, liposarcoma, hemangioma, and lymphoma. They also examine diseases of the osseous thorax, including benign osseous tumors, fibrous dysplasia, and aneurysmal bone cyst. In addition, they discuss such malignant osseous tumors as osteosarcoma and Ewing's sarc... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1442313 Thu, 01 May 2008 04:00:00 +0100 1442313 http://www.medworm.com/index.php?rid=1406500&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440473%26dopt%3DAbstract Authors: Beall DP, Campbell SE PMID: 18440473 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406500 Fri, 01 Feb 2008 05:00:00 +0100 1406500 http://www.medworm.com/index.php?rid=1406499&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440474%26dopt%3DAbstract This article discusses the MR imaging evaluation of acute and chronic ankle inversion injuries. PMID: 18440474 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406499 Fri, 01 Feb 2008 05:00:00 +0100 1406499 http://www.medworm.com/index.php?rid=1406498&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440475%26dopt%3DAbstract Authors: Crim J MR imaging offers the great advantage over other imaging modalities by demonstrating ligament injuries directly rather than relying on secondary signs of bony abnormalities. Based on the literature at present, it has been shown that MR imaging can demonstrate tears of the Lisfranc ligament complex. There is, however, limited information on diagnostic accuracy. PMID: 18440475 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406498 Fri, 01 Feb 2008 05:00:00 +0100 1406498 http://www.medworm.com/index.php?rid=1406497&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440476%26dopt%3DAbstract Authors: Sanders TG, Rathur SK The term "ankle impingement" encompasses several distinct clinical entities resulting from entrapment of either an osseous or soft tissue structure. Three types of ankle impingement-anterior, anterolateral, and posterior-are well understood and have been described relatively well in the medical literature. Three additional categories of ankle impingement-anteromedial, posteromedial, and syndesmotic-are being recognized increasingly in the orthopedic community but have only scant references in the literature. The six types of ankle impingement are discussed separately, including a description of the typical clinical presentation, pertinent anatomy, pathophysiology, the role of imaging, and the various treatment options available. PMID: 18440476 [PubMed... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406497 Fri, 01 Feb 2008 05:00:00 +0100 1406497 http://www.medworm.com/index.php?rid=1406496&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440477%26dopt%3DAbstract This article discusses the imaging evaluation of chronic ankle and hindfoot pain related to osseous and soft-tissue injuries in athletes. MR imaging is the preferred imaging modality in most of the presented cases. PMID: 18440477 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406496 Fri, 01 Feb 2008 05:00:00 +0100 1406496 http://www.medworm.com/index.php?rid=1406495&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440478%26dopt%3DAbstract Authors: Russell JM, Peterson JJ, Bancroft LW MR imaging can be quite useful in the evaluation of pathologic processes related to the diabetic foot. The diagnosis of soft tissue processes such as callus formation, ulceration, foreign body granuloma, cellulitis, abscess, and gangrene can be made with the assistance of MR imaging. Osseous deformities such as hammertoe, rocker-bottom foot, neuropathic osteoarthropathy, and osteomyelitis can be detected and defined with MR imaging. Finally, although there are some overlapping features of neuropathic osteoarthropathy and osteomyelitis, the differentiation between the two entities is possible in most instances with the aid of MR imaging. PMID: 18440478 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406495 Fri, 01 Feb 2008 05:00:00 +0100 1406495 http://www.medworm.com/index.php?rid=1406494&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440479%26dopt%3DAbstract This article reviews the most commonly encountered primary benign and malignant osseous neoplasms that affect the foot and ankle, emphasizing their characteristic radiologic and MR imaging features to aid in appropriate patient management. PMID: 18440479 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406494 Fri, 01 Feb 2008 05:00:00 +0100 1406494 http://www.medworm.com/index.php?rid=1406493&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440480%26dopt%3DAbstract Authors: Crain JM, Phancao JP, Stidham K MR imaging provides soft tissue detail unparalleled by any other modality for the assessment of turf toe injuries and has become standard in certain populations of athletic patients. Principal knowledge of the anatomy and appropriate imaging techniques is central for accurate imaging evaluation. The precise determination of the structures involved and the severity of the injury by MR imaging provides the basis for treatment. PMID: 18440480 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406493 Fri, 01 Feb 2008 05:00:00 +0100 1406493 http://www.medworm.com/index.php?rid=1406492&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440481%26dopt%3DAbstract Authors: Ting AY, Morrison WB, Kavanagh EC MR imaging is the imaging modality of choice for the evaluation of acute and chronic injuries of the midfoot. The complex anatomy of this region demands the multiplanar capabilities of this modality, and because injuries of this region most commonly involve the tendon, ligament, and muscular supports of the foot and ankle, MR imaging offers superior soft tissue resolution. MR imaging has the added advantage of accurate osseous injury characterization in most instances; however, CT also may be required, because the two modalities are complementary for demonstrating pathology of bone. PMID: 18440481 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406492 Fri, 01 Feb 2008 05:00:00 +0100 1406492 http://www.medworm.com/index.php?rid=1406491&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18440482%26dopt%3DAbstract This article discusses the anatomy and pathology of the nerves of the leg, ankle, and foot, with an emphasis on MR imaging. PMID: 18440482 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1406491 Fri, 01 Feb 2008 05:00:00 +0100 1406491 http://www.medworm.com/index.php?rid=1002102&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976586%26dopt%3DAbstract Authors: Kim RJ PMID: 17976586 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002102 Thu, 01 Nov 2007 04:00:00 +0100 1002102 http://www.medworm.com/index.php?rid=1002101&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976587%26dopt%3DAbstract This article provides a basic understanding of important operational considerations when starting a CMR service and describes a conceptual framework of the components of a CMR examination. PMID: 17976587 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002101 Thu, 01 Nov 2007 04:00:00 +0100 1002101 http://www.medworm.com/index.php?rid=1002100&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976588%26dopt%3DAbstract This article reviews CMR methods used to assess regional and global ventricular function. PMID: 17976588 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002100 Thu, 01 Nov 2007 04:00:00 +0100 1002100 http://www.medworm.com/index.php?rid=1002099&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976589%26dopt%3DAbstract This article provides an overview of experimental data establishing the physiologic basis of DE-MRI-evidenced hyperenhancement as a tissue-specific marker of myocardial infarction. Clinical data concerning the utility of transmural extent of hyperenhancement for predicting response to medical and revascularization therapy are reviewed. Studies directly comparing DE-MRI to other viability imaging techniques are presented, and emerging applications for DE-MRI are discussed. PMID: 17976589 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002099 Thu, 01 Nov 2007 04:00:00 +0100 1002099 http://www.medworm.com/index.php?rid=1002098&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976590%26dopt%3DAbstract This article reviews the current state of stress perfusion MRI. Specifically, it addresses the following topics: validation of stress perfusion MRI in preclinical studies, diagnostic performance in patients, imaging protocol, and image interpretation. PMID: 17976590 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002098 Thu, 01 Nov 2007 04:00:00 +0100 1002098 http://www.medworm.com/index.php?rid=1002097&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976591%26dopt%3DAbstract This article outlines a diagnostic approach for the primary use of CMR in the phenotypic characterization, risk stratification, and therapeutic management of patients with HF. PMID: 17976591 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002097 Thu, 01 Nov 2007 04:00:00 +0100 1002097 http://www.medworm.com/index.php?rid=1002096&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976592%26dopt%3DAbstract This article provides an approach to CMR evaluation of several common congenital heart lesions. PMID: 17976592 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002096 Thu, 01 Nov 2007 04:00:00 +0100 1002096 http://www.medworm.com/index.php?rid=1002095&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976593%26dopt%3DAbstract Authors: Grizzard JD, Ang GB MRI is known to be a superior modality for evaluating pericardial disease and masses because of its unmatched capacity for tissue characterization and high spatial resolution. New real-time sequences now complement the standard morphologic imaging of the pericardium with dynamic image acquisitions that also can provide hemodynamic information indicative of constriction. In the evaluation of masses, recently developed rapid imaging sequences have shortened examination times and improved lesion characterization. The full spectrum of pericardial disease and cardiac masses is reviewed, and the role of MRI explored. PMID: 17976593 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002095 Thu, 01 Nov 2007 04:00:00 +0100 1002095 http://www.medworm.com/index.php?rid=1002094&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976594%26dopt%3DAbstract This article highlights the technical challenges and general imaging strategies for coronary MRI. This is followed by a review of the clinical results for the assessment of anomalous CAD, coronary artery aneurysms, native vessel integrity, and coronary artery bypass graft disease using the more commonly applied MRI methods. It concludes with a brief discussion of the advantages/disadvantages and clinical results comparing coronary MRI with multidetector CT (MDCT) coronary angiography. PMID: 17976594 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002094 Thu, 01 Nov 2007 04:00:00 +0100 1002094 http://www.medworm.com/index.php?rid=1002093&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976595%26dopt%3DAbstract This article focuses primarily on the latter. PMID: 17976595 [PubMed - as supplied by publisher] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002093 Thu, 01 Nov 2007 04:00:00 +0100 1002093 http://www.medworm.com/index.php?rid=1002092&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17976596%26dopt%3DAbstract This article provides the reader with a clinically relevant practical approach to obtaining high-quality magnetic resonance angiograms of the lower extremities. The physics underlying this imaging are discussed as they relate to practical matters such as contrast timing schemes. Model protocols for various scanners are presented, and the rationale for the choices. In addition to the standard core protocol, alternative protocols are presented, so that the reader will have a sense of the full palette of options available, and be readily able to appreciate the relative advantages and disadvantages of each. Applications of these protocols in imaging various disorders then are discussed, with clinical exams presented. Pearls and pitfalls regarding imaging techniques and various tricks of the tr... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=1002092 Thu, 01 Nov 2007 04:00:00 +0100 1002092 http://www.medworm.com/index.php?rid=905683&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893048%26dopt%3DAbstract Authors: Merkle EM PMID: 17893048 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905683 Wed, 01 Aug 2007 04:00:00 +0100 905683 http://www.medworm.com/index.php?rid=905682&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893049%26dopt%3DAbstract This article illustrates changes in the underlying physics concepts related to increasing the main magnetic field from 1.5T to 3T. The effects of these changes on tissue constants and practical hardware limitations is discussed as they affect scan time, quality, and contrast. Changes in susceptibility artifacts, chemical shift artifacts, and dielectric effects as a result of the increased field strength are also illustrated. Based on these fundamental considerations, an overall understanding of the benefits and constraints of signal-to-noise ratio and contrast-to-noise ratio changes between 1.5T and 3T MR systems is developed. PMID: 17893049 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905682 Wed, 01 Aug 2007 04:00:00 +0100 905682 http://www.medworm.com/index.php?rid=905681&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893050%26dopt%3DAbstract This article summarizes developing techniques and technique-related aspects, and the advantages and possible pitfalls of 3T in particular. PMID: 17893050 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905681 Wed, 01 Aug 2007 04:00:00 +0100 905681 http://www.medworm.com/index.php?rid=905680&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893051%26dopt%3DAbstract This article also provides an outlook to new technical concepts that are already at the horizon of MRA. PMID: 17893051 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905680 Wed, 01 Aug 2007 04:00:00 +0100 905680 http://www.medworm.com/index.php?rid=905679&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893052%26dopt%3DAbstract This article provides a short introduction to the clinical use of breast MR imaging, presents the different concepts that exist for breast MR imaging in general, and explains the advantages and disadvantages of the respective approaches. The specific high-field-induced physical changes and their effects on breast imaging are explained. A short overview is given on the current level of evidence regarding breast MR imaging at higher magnetic fields. PMID: 17893052 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905679 Wed, 01 Aug 2007 04:00:00 +0100 905679 http://www.medworm.com/index.php?rid=905678&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893053%26dopt%3DAbstract This article focuses on technical challenges in transferring 1.5T liver protocols to 3T systems and the overall comparison of MR sequences, highlighting the advantages and disadvantages of imaging at the higher field strength. An important benefit is the capacity of acquiring high-quality, thin-section postgadolinium T1-weighted three-dimensional gradientecho sequences, most clinically relevant for the detection and characterization of small hypervascular malignant diseases. Further research and development is necessary to overcome disadvantages, such as with in- and out-of phase T1-weighted gradient-echo sequences, and to minimize artifacts that appear at 3T. PMID: 17893053 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905678 Wed, 01 Aug 2007 04:00:00 +0100 905678 http://www.medworm.com/index.php?rid=905677&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893054%26dopt%3DAbstract Authors: Edelman RR Pancreatic cancer has an almost uniformly grim prognosis. Early detection has the potential to improve survival, however. One promising approach to increase detection rates is the use of MR imaging at 3T. Imaging at 3T improves temporal or spatial resolution for pancreatic evaluation. Known challenges of imaging at 3T, such as increased power deposition and B1 field inhomogeneity, are not significant limitations for pancreatic imaging. Preliminary results suggest that the signal-to-noise ratio can be as much as twice as high as at 1.5T, particularly after contrast administration. Evaluation of the hepatobiliary ducts is comparable or superior to that at 1.5T. Additional studies are needed to determine if the improved image quality translates into improved sensitivit... Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905677 Wed, 01 Aug 2007 04:00:00 +0100 905677 http://www.medworm.com/index.php?rid=905676&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893055%26dopt%3DAbstract This article reviews the current literature on the benefits and drawbacks of MR cholangiopancreatography at 3T compared with a standard field strength of 1.5T. Field strength-related artifacts that affect MR cholangiopancreatography at 3T also are discussed. PMID: 17893055 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905676 Wed, 01 Aug 2007 04:00:00 +0100 905676 http://www.medworm.com/index.php?rid=905675&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893056%26dopt%3DAbstract This article reviews the current literature regarding adrenal imaging at 3.0 T with a focus on the chemical shift technique. PMID: 17893056 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905675 Wed, 01 Aug 2007 04:00:00 +0100 905675 http://www.medworm.com/index.php?rid=905674&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893057%26dopt%3DAbstract Authors: Leyendecker JR, Childs DD Clinically useful images of the kidneys, ureters, and bladder can be generated routinely on a 3T MR scanner. Although little has been published directly comparing 3.0-T MR imaging of the urinary tract with 1.5T imaging, the same benefits and limitations that apply to other areas of the body apply to urinary tract imaging at 3T. The potential benefits of improved signal-to-noise ratio and conspicuity of gadolinium enhancement and the potential for functional MR imaging of the kidneys at 3T are compelling, but need to be investigated further. PMID: 17893057 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905674 Wed, 01 Aug 2007 04:00:00 +0100 905674 http://www.medworm.com/index.php?rid=905673&cid=s_33234_37_f&fid=33234&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D17893058%26dopt%3DAbstract This article provides practical information regarding patient preparation schemes for small bowel MR imaging, and offers dedicated pulse sequence protocols for 1.5-T and 3-T MR imaging scanners, with specific emphasis on the advantages and remaining limitations of the higher field strength. PMID: 17893058 [PubMed - in process] (Source: Magnetic Resonance Imaging Clinics of North America) Magnetic Resonance Imaging Clinics of North America journals http://www.medworm.com/rss/comments.php?id=905673 Wed, 01 Aug 2007 04:00:00 +0100 905673