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 'Academic Radiology' source. Thu, 09 Feb 2012 03:37:22 +0100 http://www.medworm.com/index.php?rid=5669815&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005162%2Fabstract%3Frss%3Dyes This first edition of the Atlas of Pulmonary Vascular Imaging is a good source of pulmonary vascular anatomy and cases with emphasis on pathophysiology of the pulmonary vascular disease. The book is a good and easy read for radiology residents in general and pulmonary radiology fellows in particular. The book is also very useful for pediatric radiologists and emergency radiologists given the variety of cases that are included in both the congenital and acute settings. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669815 Thu, 09 Feb 2012 07:45:53 +0100 5669815 http://www.medworm.com/index.php?rid=5669814&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005551%2Fabstract%3Frss%3Dyes I am not a pedigreed pedagogue. In college, I took no courses in education psychology or technology. I did not aspire to make a career as a teacher. My intention was to be a very energetic, efficient, and insightful journalist. I would, so I dreamed, be a reporter who could explore, investigate, and write penetrating prose that would be part of news in newspapers and magazines, on radio stations, and even on that new medium, television. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669814 Thu, 09 Feb 2012 07:45:53 +0100 5669814 http://www.medworm.com/index.php?rid=5669812&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005150%2Fabstract%3Frss%3Dyes Year after year, medical students pose questions that reflect the same concerns and misconceptions about a career in radiology. While radiology educators and practicing radiologists may perceive many of these reservations as ill-founded or misguided, they are nonetheless important to recognize and address. Student decisions about careers are determined not only by what students know, but also by what they think they know. If students opt for radiology or eschew it based on inaccurate information, this benefits neither the students nor the field of radiology. In what follows, we briefly identify and suggest strategies for educating students about a dozen concerns and misconceptions. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669812 Thu, 09 Feb 2012 07:45:53 +0100 5669812 http://www.medworm.com/index.php?rid=5669811&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005927%2Fabstract%3Frss%3Dyes Conclusions: It is feasible to assess the efficacy of antiangiogenic therapy on VX2 tumors using three-dimensional CTA combined with CT perfusion. Three-dimensional CTA can display the morphologic changes of tumor vessels, while CT perfusion can predict the functional changes of tumor vessels after antiangiogenic therapy. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669811 Thu, 09 Feb 2012 07:45:53 +0100 5669811 http://www.medworm.com/index.php?rid=5669805&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005101%2Fabstract%3Frss%3Dyes Conclusions: CAD for breast ultrasound appears to be a useful tool for improving the diagnosis of malignant lesions for junior radiologists. Nevertheless, its low specificity must be taken into account to limit biopsies of benign lesions. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669805 Thu, 09 Feb 2012 07:45:53 +0100 5669805 http://www.medworm.com/index.php?rid=5669798&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211006088%2Fabstract%3Frss%3Dyes In the struggle for life, some perish and others succeed; the less give way to the greater, and are changed into the qualities of the predominant type. —Augustine, De Civitate Dei (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669798 Thu, 09 Feb 2012 07:45:52 +0100 5669798 http://www.medworm.com/index.php?rid=5563247&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004545%2Fabstract%3Frss%3Dyes No grants or other monetary funds were used for the conduction of this study. This book is another of a multibook series published by Thieme (series title RadCases), each covering a major subspecialty of radiology. It is a compilation of 100 cases aimed at giving radiology residents and trainees a review of primarily commonly encountered and need-to-know diagnoses. Cases are presented as unknowns on a single page, with the diagnosis and discussion on the following page. The overall format is easy to follow and lends itself to short sessions but can certainly be read straight through. The text’s large (but thin) size allows full image resolution for computed tomography (CT) and good resolution for plain radiographs. This alleviates some of the problems with other similar series where sub... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563247 Fri, 06 Jan 2012 11:08:02 +0100 5563247 http://www.medworm.com/index.php?rid=5563246&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004557%2Fabstract%3Frss%3Dyes Thoracic Imaging: Case Review Series is not only a necessary resource for the senior radiology resident preparing for boards, but a readable and comprehensive text that can make the average junior radiology resident into a case conference juggernaut. I read the original edition during my first year of radiology residency and fooled my thoracic attending into thinking I was a genius. I read the second edition before writing this review. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563246 Fri, 06 Jan 2012 11:08:02 +0100 5563246 http://www.medworm.com/index.php?rid=5563245&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005046%2Fabstract%3Frss%3Dyes Within only weeks after Wilhelm Conrad Roentgen wrote his papers about discovering x-rays, many physicians were intrigued at the new device that produced internal images and also had the effect of penetrating, exposing, and curing skin cancers and arthritis. Within just a few months after doctors began using x-rays, some of them noticed harm to segments of their anatomy and induced cancers in a total lack of x-ray protection from the use of unshielded x-ray-generating gas tubes. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563245 Fri, 06 Jan 2012 11:08:02 +0100 5563245 http://www.medworm.com/index.php?rid=5563240&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005587%2Fabstract%3Frss%3Dyes This article provides an overview of the process of implementing and integrating PACS in a comprehensive health system comprising an academic core hospital and numerous community hospitals. Important issues are addressed, touching all stages from planning to operation and training. The impact of an enterprise-wide radiology information system and PACS at the academic medical center (four specialty hospitals), in six additional community hospitals, and in all associated outpatient clinics as well as the implications on the productivity and efficiency of the entire enterprise are presented. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563240 Fri, 06 Jan 2012 11:08:02 +0100 5563240 http://www.medworm.com/index.php?rid=5563239&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005575%2Fabstract%3Frss%3Dyes The benefits of an interactive online world have affected the way we purchase products and plan our vacations. It is only a matter of time before consumers start demanding health care with the same convenience that comes with booking an airline flight or managing a bank account. The health care industry itself requires periodic and mandatory data analysis for outcome analysis, clinical benchmarking, quality improvement, forming guidelines, and making decisions. The federal government and health care community have been working together to come up with more robust and cost-effective health care informatics solutions. Meaningful use (MU) intends to establish a new standard for health care informatics in the United States. The term “meaningful use” implies that health care information and... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563239 Fri, 06 Jan 2012 11:08:02 +0100 5563239 http://www.medworm.com/index.php?rid=5563238&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005034%2Fabstract%3Frss%3Dyes To evaluate financial performance, academic radiology departments most often measure examination volume and general technical and professional expenses. Although these metrics are not standardized, their frequency of use reflects that productivity and financial health are high priorities for academic radiology departments across the United States. In this article, we discuss both of these topics, in the context of projects to expand services, particularly those with an information technology (IT) component. First, we discuss several informatics innovations that increase productivity or expand service. Second, we explain core financial analysis concepts applicable to radiology departments. Third, we discuss the unique challenge of evaluating a potential IT project for an academic radiology ... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563238 Fri, 06 Jan 2012 11:08:02 +0100 5563238 http://www.medworm.com/index.php?rid=5563236&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004946%2Fabstract%3Frss%3Dyes Conclusion: Our findings indicate a potential source of systematic error during gaze recording in a dynamic environment and highlight the importance of configuring the calibration procedure according to the brightness of the display. We recommend that investigators develop routines for postcalibration accuracy measurement and report the effective accuracy for the display environment in which the data are collected. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563236 Fri, 06 Jan 2012 11:08:02 +0100 5563236 http://www.medworm.com/index.php?rid=5563235&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004934%2Fabstract%3Frss%3Dyes Conclusions: CTPA reports by radiology residents can be relied and acted upon without any major discrepancies. There is a relatively much higher proportion of patients with alternative diagnoses, mainly infective consolidation and heart failure presenting with similar symptoms and signs as pulmonary emboli. It is imperative for trainees to be systematic and review all images if observational omissions are to be reduced. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563235 Fri, 06 Jan 2012 11:08:02 +0100 5563235 http://www.medworm.com/index.php?rid=5563230&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004569%2Fabstract%3Frss%3Dyes Conclusions: The results of this study indicate that PCT with ACZ challenge is a more reliable technique compared to 10% CO2 challenge for the quantitative evaluation of microcirculation in gliomas. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563230 Fri, 06 Jan 2012 11:08:02 +0100 5563230 http://www.medworm.com/index.php?rid=5669799&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005186%2Fabstract%3Frss%3Dyes Conclusion: Using a decision analytic model, CCT-based evaluation resulted in overall lower cost than the SOC for possible ACS patients over a wide range of cost and outcome assumptions, including computed tomography–related complications and downstream costs. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669799 Tue, 03 Jan 2012 05:00:00 +0100 5669799 http://www.medworm.com/index.php?rid=5669801&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005538%2Fabstract%3Frss%3Dyes Conclusions: L-VCTA is helpful in detecting intracranial aneurysms, with results similar to those of 3D DSA, but at a lower radiation dose than C-VCTA. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669801 Fri, 30 Dec 2011 05:00:00 +0100 5669801 http://www.medworm.com/index.php?rid=5669807&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005113%2Fabstract%3Frss%3Dyes Rationale and Objectives: Diffusion magnetic resonance imaging may be useful in tracking tumor growth and response to treatment. However, studies using these measures may lack statistical power to draw definitive conclusions regarding changes in tumor cellularity. Using apparent diffusion coefficient values taken from the literature, the investigators estimated sample sizes for a range of changes to the mean.Materials and Methods: A literature search was performed of studies measuring the average apparent diffusion coefficients for various bodily tissues, and the mean and standard deviation from each study were recorded. Analyses of statistical power were then performed using these values and comparing them to a population of healthy controls.Results: Tumor cellularity as measured by appar... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669807 Mon, 19 Dec 2011 05:00:00 +0100 5669807 http://www.medworm.com/index.php?rid=5669813&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100554X%2Fabstract%3Frss%3Dyes Conclusions: Students, regardless of requirements, think there is value in having radiology as a regular aspect of a medical school curriculum. Medical schools should consider ways of incorporating radiology into their clinical curriculum. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669813 Fri, 16 Dec 2011 05:00:00 +0100 5669813 http://www.medworm.com/index.php?rid=5669809&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005514%2Fabstract%3Frss%3Dyes Conclusions: The prevalence of PE was 28.1% and that of renal vein thrombosis 25.0% in the pediatric population with nephrotic syndrome on the basis of our small cohort. DE CTPA has the potential to improve the detection of PE in the pediatric population. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669809 Fri, 16 Dec 2011 05:00:00 +0100 5669809 http://www.medworm.com/index.php?rid=5669800&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005125%2Fabstract%3Frss%3Dyes Rationale and Objectives: Three-dimensional (3D) velocity-encoded cine (VEC) magnetic resonance imaging (MRI) has the potential to quantify 3D hemodynamic aspects known from computational fluid dynamics and to be used to identify hemodynamic risk factors for complications of endovascular aortic repair. The purpose of this study was to investigate the impact of an aortic nickel-titanium (nitinol) stent graft on the accuracy of flow measurements by 3D VEC MRI.Materials and Methods: A pump generated pulsatile aortic flow in an elastic tube phantom mimicking the aorta. Stacked two-dimensional three-directional VEC MRI (stacked-2D-3dir-MRI), 3D three-directional VEC MRI (3D-3dir-MRI), and gold-standard 2D through-plane VEC MRI were applied before and after the insertion of an aortic nitinol ste... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669800 Fri, 16 Dec 2011 05:00:00 +0100 5669800 http://www.medworm.com/index.php?rid=5669810&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005058%2Fabstract%3Frss%3Dyes Conclusions: Although FDG-PET or PET/CT has higher sensitivity and specificity than bone scintigraphy, further research with a less biased design is needed to determine the most efficacious imaging modality for the detection of metastatic lung cancer. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669810 Thu, 15 Dec 2011 05:00:00 +0100 5669810 http://www.medworm.com/index.php?rid=5669806&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005095%2Fabstract%3Frss%3Dyes Rationale and Objectives: To evaluate cone beam computed tomography (CBCT) for monitoring of tibial bone defect healing in comparison to histopathological findings.Materials and Methods: Circumscribed tibial bone defects were created in 16 mini-pigs and imaging of the tibia was performed on day 42 using a modern CBCT scanner with flat panel detector (PaX-Duo3D, Vatech, Korea). The extent of osseous consolidation including remaining calcium phosphate granules was measured quantitatively by a CBCT volumetry tool using commercially available software (Osirix Imaging software, Pixmeo, Geneva, Switzerland). Volumes of the entire defect (including all pixels), areas of osseous consolidation (density values >2350) and nonmineralized areas (density values (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669806 Thu, 15 Dec 2011 05:00:00 +0100 5669806 http://www.medworm.com/index.php?rid=5669804&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005137%2Fabstract%3Frss%3Dyes Conclusions: This study indicated that 1) bilateral mammographic density asymmetry was a stronger indicator of the case depicting suspicious masses than the average density computed from two breasts and 2) fusion between the conventional CAD scores and bilateral mammographic density asymmetry information could substantially increase CAD performance in mass detection. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669804 Thu, 15 Dec 2011 05:00:00 +0100 5669804 http://www.medworm.com/index.php?rid=5669803&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005083%2Fabstract%3Frss%3Dyes Conclusions: Abnormal ductal dilatations without masses have a 9% malignancy rate, and these would be recommended to undergo biopsy as suspicious abnormalities according to Breast Imaging Reporting and Data System – Ultrasound. Ultrasound has an essential role in the assessment of abnormal ducts for distinguishing benign and malignant ductal changes. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669803 Thu, 15 Dec 2011 05:00:00 +0100 5669803 http://www.medworm.com/index.php?rid=5669808&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005149%2Fabstract%3Frss%3Dyes Conclusion: MRI has good diagnostic performance in the overall pretreatment evaluation of node staging with HNSCC. A limited number of small studies suggest DWI is superior to conventional imaging for nodal staging of HNSCC. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669808 Thu, 08 Dec 2011 05:00:00 +0100 5669808 http://www.medworm.com/index.php?rid=5563243&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005071%2Fabstract%3Frss%3Dyes Conclusions: Resident education for contrast reaction management is primarily performed with annual lectures. Only 18% of programs are using simulation training, and (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563243 Thu, 08 Dec 2011 05:00:00 +0100 5563243 http://www.medworm.com/index.php?rid=5479361&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004429%2Fabstract%3Frss%3Dyes This first edition of Rapid Review for Radiology is an excellent resource for radiology residents in general and final year residents preparing for boards in particular. The book has six sections that include chest, abdomen, central nervous system (including head and neck), MSK, pediatrics, and breast. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479361 Wed, 07 Dec 2011 20:35:05 +0100 5479361 http://www.medworm.com/index.php?rid=5479360&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004442%2Fabstract%3Frss%3Dyes This book is about the contemporary use of personal technology to accomplish many of the nonpatient care tasks of an academic physician. It was written by three radiologists in academic practice. The lead author, Michael Richardson, is a professor at the University of Washington who has been writing about computer applications in radiology for decades; the other authors are more junior faculty members who both trained under Richardson. They have all been lecturing on cool technologies at recent national meetings. I purchased the book from Amazon.com’s Kindle Store and read it on my iPad. However, it is available from other vendors and may be read on other platforms. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479360 Wed, 07 Dec 2011 20:35:05 +0100 5479360 http://www.medworm.com/index.php?rid=5479359&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004454%2Fabstract%3Frss%3Dyes A couple of weeks ago, when we were indulging in an afternoon social celebration, one of my guests commented that he was thinking of buying a new car because the one he had been driving was about to top 250,000 miles and was showing a bit of wear. The rest of us expressed our awe, and bit by bit, we all talked about our cars. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479359 Wed, 07 Dec 2011 20:35:05 +0100 5479359 http://www.medworm.com/index.php?rid=5479358&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004508%2Fabstract%3Frss%3Dyes Faculty promotion within an academic department of radiology may place emphasis on scientific research, administrative contributions, educational contributions, or a combination of all endeavors that enrich the department and further its academic mission. For those departments considering the establishment of a promotion pathway that emphasizes teaching talents and education-oriented research, the authors provide examples of three different clinician-educator faculty appointment and promotion schemes. Faculty development and defining scholarly work as a clinician-educator, as well as documentation of academic productivity within this pathway, are discussed. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479358 Wed, 07 Dec 2011 20:35:05 +0100 5479358 http://www.medworm.com/index.php?rid=5479356&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005563%2Fabstract%3Frss%3Dyes I am delighted to announce that Richard Gunderman M.D., PhD will become the new Executive Deputy Editor for Education for Academic Radiology as of January 1, 2012. Richard is presently Professor of Radiology and Vice Chairman of the Department of Radiology at the Indiana School of Medicine. He also has secondary appointments in Pediatrics, Medical Education, and Philosophy. He has a great interest in Radiology Education and has published extensively on the subject. He is no stranger to the AUR and serves on the AUR Board of Directors, Development Committee and is Program Chair of the Philips Academic Faculty Development Program. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479356 Wed, 07 Dec 2011 20:35:05 +0100 5479356 http://www.medworm.com/index.php?rid=5479354&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100434X%2Fabstract%3Frss%3Dyes Conclusions: Histogram analysis revealed early changes after therapy resulting in a shift toward more (kurtosis) and lower values (skewness) of microcirculation parameters. Therefore, histogram analysis can determine and describe if a chosen therapy works at all. However, there were no differences between the chosen therapies. This needs to be reevaluated in a larger number of treated patients. Histogram analysis can also be an adjunct to a subjective visual analysis but is hampered by heterogeneous infiltration pattern seen in multiple myeloma. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479354 Wed, 07 Dec 2011 20:35:05 +0100 5479354 http://www.medworm.com/index.php?rid=5479352&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004533%2Fabstract%3Frss%3Dyes Conclusion: WBLD-CT reliably excludes findings compatible with myeloma in MGUS and thereby complements hematologic laboratory analysis. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479352 Wed, 07 Dec 2011 20:35:05 +0100 5479352 http://www.medworm.com/index.php?rid=5479351&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004521%2Fabstract%3Frss%3Dyes Conclusion: Application of simple BMI-based guidelines and DLP tracking of low-dose helical chest CT scans in a lung cancer screening program minimizes radiation dose, even in a largely overweight population. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479351 Wed, 07 Dec 2011 20:35:05 +0100 5479351 http://www.medworm.com/index.php?rid=5479349&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004430%2Fabstract%3Frss%3Dyes Conclusion: Baseline WB metabolic tumor burden, as measured with MTV and TLG, is a prognostic measurement in patients within Stage IV NSCLC with low interobserver variability. This study also suggests pretreatment MTV and TLG measurements may be used to further stratify patients with Stage IV NSCLC and are better prognostic measures than SUVmax and SUVmean measurements. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479349 Wed, 07 Dec 2011 20:35:05 +0100 5479349 http://www.medworm.com/index.php?rid=5479343&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004375%2Fabstract%3Frss%3Dyes Conclusion: The demyelination load in metachromatic leukodystrophy can be determined in a time-efficient manner using a semiautomatic algorithm, showing high agreement with the current gold standard. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479343 Wed, 07 Dec 2011 20:35:05 +0100 5479343 http://www.medworm.com/index.php?rid=5479342&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004351%2Fabstract%3Frss%3Dyes Conclusion: Diffusion tensor scalar parameters provided measures of properties of the three-dimensional callosal projections. In TSC, changes in these parameters may reflect microstructural changes in myelination, axonal integrity, or extracellular environment. Alterations in white matter microstructural properties were associated with TSC, and larger changes were associated with TSC and ASD, thus establishing a relationship between altered white matter microstructural integrity and brain function. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479342 Wed, 07 Dec 2011 20:35:05 +0100 5479342 http://www.medworm.com/index.php?rid=5479339&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005009%2Fabstract%3Frss%3Dyes Among the many variables that influence outcomes in acute subarachnoid hemorrhage resulting from a ruptured cerebral aneurysm (aSAH), the three most consistent predictors of a dismal outcome are poor initial clinical presentation, advanced age, and aneurysm rebleeding . As a result, the management of aSAH is focused largely on securing the culprit aneurysm from future rehemorrhage. Craniotomy with clipping and endovascular coil embolization (embosurgery) are both effective in this regard, although the landmark International Subarachnoid Aneurysm Trial demonstrated superior short- and long-term outcomes for embosurgery . (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479339 Wed, 07 Dec 2011 20:35:05 +0100 5479339 http://www.medworm.com/index.php?rid=5669816&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005174%2Fabstract%3Frss%3Dyes This first edition collection of 225 head and neck cases offers a well-organized, comprehensive overview of both the common and uncommon entities most likely to be encountered in either clinical practice or board examinations. The target audience includes medical students, residents in radiology or otolaryngology, neuroradiology fellows, subspecialist neuroradiologists, and general practice radiologists who read head and neck cases. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669816 Fri, 02 Dec 2011 05:00:00 +0100 5669816 http://www.medworm.com/index.php?rid=5669802&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100496X%2Fabstract%3Frss%3Dyes Conclusion: Many radiologists report goals for their accuracy when interpreting screening mammograms that fall outside of published desirable benchmarks, particularly for false-positive rate and PPV2, indicating an opportunity for education. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5669802 Fri, 02 Dec 2011 05:00:00 +0100 5669802 http://www.medworm.com/index.php?rid=5563244&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004612%2Fabstract%3Frss%3Dyes Conclusion: The lesion-focused approach technique has the potential to reduce both complication rates and patient incompliance. Percutaneous liver biopsies performed with this technique using real-time US guidance are convincing and clinically beneficial. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563244 Fri, 02 Dec 2011 05:00:00 +0100 5563244 http://www.medworm.com/index.php?rid=5563237&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100506X%2Fabstract%3Frss%3Dyes Conclusion: Baseline BF and MTT can discriminate patients with a favorable response from those that fail to respond to CRT, potentially selecting high-risk patients with resistant tumors that may benefit from an aggressive preoperative treatment approach. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563237 Fri, 02 Dec 2011 05:00:00 +0100 5563237 http://www.medworm.com/index.php?rid=5563226&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005198%2Fabstract%3Frss%3Dyes In this issue, Academic Radiology is presenting a number of articles reviewing different aspects of medical informatics . These articles collect the information provided in the Association of University Radiologists (AUR)-Carestream Innovations in Academic Radiology course given during the 2011 AUR meeting held in Boston, MA. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563226 Mon, 28 Nov 2011 05:00:00 +0100 5563226 http://www.medworm.com/index.php?rid=5563233&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004624%2Fabstract%3Frss%3Dyes Conclusion: The 3T BMD was highly correlated with L1-3 BMD. Thoracic BMD can be measured during cardiac and lung CT imaging without need for additional participant burden or radiation dose. This highly reproducible methodology is actively being applied to large cohort studies to evaluate the prevalence of osteoporosis and track BMD over time. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563233 Thu, 24 Nov 2011 05:00:00 +0100 5563233 http://www.medworm.com/index.php?rid=5563242&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004570%2Fabstract%3Frss%3Dyes The organizational form known as bureaucracy tends to be perceived in pejorative terms, but bureaucracies play a vital role in contemporary radiology. Individual radiology departments, hospitals, and national radiology organizations exhibit features of bureaucratic organization. When bureaucracy underwent its most rapid period of development in the 19th century, it offered several advantages . For one thing, the impersonality of bureaucratic decision making and procedures reduced the arbitrariness and bias that previously characterized the work of many large organizations such as governments and corporations, making them operate more fairly. Moreover, through specialization of function, bureaucracies were often able to enhance efficiency. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563242 Mon, 21 Nov 2011 05:00:00 +0100 5563242 http://www.medworm.com/index.php?rid=5563234&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004648%2Fabstract%3Frss%3Dyes Conclusions: The dependence of sample size on measurement precision and the sensitivity of imaging measures to true change should be considered in single site and multicenter PET trials to avoid underpowered studies with inconclusive results. Sophisticated PET imaging methods that are more sensitive to changes in uptake may be advantageous in early studies with limited patient numbers. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563234 Mon, 21 Nov 2011 05:00:00 +0100 5563234 http://www.medworm.com/index.php?rid=5563232&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004600%2Fabstract%3Frss%3Dyes Conclusions: Magnetization preparation with an adiabatic wideband uniform rate smooth truncation pulse in the MPRAGE sequence at 7 T can significantly reduce the occurrence of caudal image contrast inversion and improves signal homogeneity. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563232 Mon, 21 Nov 2011 05:00:00 +0100 5563232 http://www.medworm.com/index.php?rid=5563231&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004594%2Fabstract%3Frss%3Dyes Conclusions: Lower sensitivity with comparable specificity was observed with the tested version of synthetically generated images compared to FFDM, both combined with DBT. Improved synthesized images with experimentally verified acceptable diagnostic quality will be needed to eliminate double exposure during DBT-based screening. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563231 Mon, 21 Nov 2011 05:00:00 +0100 5563231 http://www.medworm.com/index.php?rid=5563229&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004922%2Fabstract%3Frss%3Dyes Conclusion: Dual time point FDG-PET demonstrates similar sensitivity and specificity to single time point FDG-PET in the diagnosis of pulmonary nodules. The additive value of the dual time point FDG-PET is questionable, primarily because of the significant overlap of benign and malignant nodule FDG-PET characteristics and lack of consensus criteria for quantitative thresholds to define nodules as malignant. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563229 Mon, 21 Nov 2011 05:00:00 +0100 5563229 http://www.medworm.com/index.php?rid=5563228&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004636%2Fabstract%3Frss%3Dyes Conclusions: Semiautomated segmentation 3He MRI provides excellent inter- and intraobserver precision with high spatial and quantitative agreement with manual measurements enabling its use in longitudinal studies. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563228 Mon, 21 Nov 2011 05:00:00 +0100 5563228 http://www.medworm.com/index.php?rid=5563227&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004582%2Fabstract%3Frss%3Dyes Conclusions: These results indicate that digital radiography is not statistically different from analog film for the purpose of classifying pneumoconiotic pleural abnormalities, when appropriate standards are used. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563227 Mon, 21 Nov 2011 05:00:00 +0100 5563227 http://www.medworm.com/index.php?rid=5479357&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211005010%2Fabstract%3Frss%3Dyes In response to critics lodging complaints about the cost of higher education, Robert Hutchins, president of the University of Chicago from 1929 to 1945, once wrote, “If you think education is expensive, try ignorance!” (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479357 Mon, 21 Nov 2011 05:00:00 +0100 5479357 http://www.medworm.com/index.php?rid=5563241&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100451X%2Fabstract%3Frss%3Dyes Conclusion: The strengths of the actually presented database—INbreast—relies on the fact that it was built with full-field digital mammograms (in opposition to digitized mammograms), it presents a wide variability of cases, and is made publicly available together with precise annotations. We believe that this database can be a reference for future works centered or related to breast cancer imaging. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5563241 Mon, 14 Nov 2011 05:00:00 +0100 5563241 http://www.medworm.com/index.php?rid=5402384&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100393X%2Fabstract%3Frss%3Dyes Conclusions: Extrahepatic human HCC xenografts in mice could be localized with 64CuCl2 PET imaging, which might be useful for the localization and quantitative assessment of copper metabolism in extrahepatic metastases of HCC in humans. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5402384 Sun, 13 Nov 2011 19:41:45 +0100 5402384 http://www.medworm.com/index.php?rid=5391828&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003631%2Fabstract%3Frss%3Dyes is a new print and electronic reference textbook covering the most up-to-date collection of staging and imaging information for cancers of the entire human body. The book contains more than 3050 images with detailed charts and reference tables providing easy access to TNM and American Joint Committee on Cancer prognostic groups. The companion online Amirsys eBook Advantage provides many additional annotated images for oncologic imaging. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391828 Thu, 10 Nov 2011 21:13:05 +0100 5391828 http://www.medworm.com/index.php?rid=5391827&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003643%2Fabstract%3Frss%3Dyes Diagnostic Imaging: Musculoskeletal: Non-traumatic Disease is a new print and electronic reference textbook covering nontraumatic and non-sports-related musculoskeletal imaging. The book contains more than 4500 images with detailed captions focusing on arthritis, osseous tumors, soft tissue tumors, metabolic bone disease, infectious processes, systemic disease, drug-related and nutritional disease, and congenital and developmental musculoskeletal abnormalities. The companion online Amirsys eBook Advantage provides many additional annotated images. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391827 Thu, 10 Nov 2011 21:13:05 +0100 5391827 http://www.medworm.com/index.php?rid=5391826&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004417%2Fabstract%3Frss%3Dyes On weekdays, the electronic sign on the Silver Theater in Silver Spring, Maryland, contains a bright message WELCOME AIRP ATTENDEES and a moment later it says “Thanks to the American College of Radiology.” (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391826 Thu, 10 Nov 2011 21:13:05 +0100 5391826 http://www.medworm.com/index.php?rid=5391825&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004296%2Fabstract%3Frss%3Dyes Conclusions: GR programs among radiology residencies tend to have similar formats involving invited speakers, although the frequency, types of talks, and honoraria may vary slightly. Most programs value GR, and all programs integrate GR within resident education to some degree. The recent economic downturn has led to a decrease in the number of invited visiting speakers but not to a decrease in the amounts of honoraria. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391825 Thu, 10 Nov 2011 21:13:05 +0100 5391825 http://www.medworm.com/index.php?rid=5391824&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004272%2Fabstract%3Frss%3Dyes Conclusions: Hepatic fat approximations of the type TG/water overestimate hepatic steatosis degree because hepatic fat accumulation concurs with hepatic water exudation. Consequently, MRS-based approximations should be of the type TG/(TG + water) and contain a maximum number of TG resonances in the denominator. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391824 Thu, 10 Nov 2011 21:13:05 +0100 5391824 http://www.medworm.com/index.php?rid=5391821&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100393X%2Fabstract%3Frss%3Dyes Conclusions: Extrahepatic human HCC xenografts in mice could be localized with 64CuCl2 PET imaging, which might be useful for the localization and quantitative assessment of copper metabolism in extrahepatic metastases of HCC in humans. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391821 Thu, 10 Nov 2011 21:13:05 +0100 5391821 http://www.medworm.com/index.php?rid=5391818&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100362X%2Fabstract%3Frss%3Dyes Conclusion: The proposed approach provides an effective and reliable semiparametric method with which to estimate the relationship between cutoff settings or individual test-result values and corresponding points on the ROC curve. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391818 Thu, 10 Nov 2011 21:13:05 +0100 5391818 http://www.medworm.com/index.php?rid=5391817&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003618%2Fabstract%3Frss%3Dyes Conclusion: Semiautomated measurement of myocardial infarcted area on delayed enhanced magnetic resonance images performs well compared to autopsy. The threshold method, based on percentages of maximum signal intensity is preferable over standard deviation method, which is more susceptible to variability from location of ROIs within viable myocardium. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391817 Thu, 10 Nov 2011 21:13:05 +0100 5391817 http://www.medworm.com/index.php?rid=5391816&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004041%2Fabstract%3Frss%3Dyes Conclusion: Sixty-four section CCTA had a 99.3% negative predictive value in excluding MACE for 30 days after initial symptom presentation in 85.2% of our study population. Although the value of 64-section CCTA is best for identifying patients who can safely be discharged home, it is less useful for patients who have positive results. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391816 Thu, 10 Nov 2011 21:13:05 +0100 5391816 http://www.medworm.com/index.php?rid=5391810&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100403X%2Fabstract%3Frss%3Dyes Conclusions: In this study, an ensemble classifier based on domain knowledge and a dual-stage feature selection method was proposed. Evaluation results indicated that the proposed method achieved largest value of ROC compared to other algorithms. The proposed method shows better performance and has the potential to improve the performance of CBIR CAD in interpreting and analyzing mammograms. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391810 Thu, 10 Nov 2011 21:13:04 +0100 5391810 http://www.medworm.com/index.php?rid=5479355&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004338%2Fabstract%3Frss%3Dyes Conclusions: Engineering students used rigorous study design and sampling methods to conduct interviews and observations. This led to data-driven definition of problems and potential solutions to guide systems-based improvement. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479355 Fri, 04 Nov 2011 04:00:00 +0100 5479355 http://www.medworm.com/index.php?rid=5479353&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004302%2Fabstract%3Frss%3Dyes Conclusion: The effectiveness of matching screening intensity to risk on cancer detection, biopsy rate, and cost should be evaluated by studying multiple clinics and multiple risk assessment tools. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479353 Fri, 04 Nov 2011 04:00:00 +0100 5479353 http://www.medworm.com/index.php?rid=5479350&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004405%2Fabstract%3Frss%3Dyes Conclusion: Whereas estimation of BF in lung cancer was independent from VPCT measurement time within the chosen ranges, approximation of both BV and k-trans was affected by measurement duration. A fixed measurement time of 40 seconds is recommended. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479350 Fri, 04 Nov 2011 04:00:00 +0100 5479350 http://www.medworm.com/index.php?rid=5479348&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004363%2Fabstract%3Frss%3Dyes Conclusions: LAV is underestimated by both 2D TTE and 3D TTE relative to coronary computed tomographic angiography. Excellent agreement between the ALM and ACR with MDCT imaging suggests that the geometric model plays a negligible role in the underestimation of LAV. Underestimation of LAV by echocardiography is likely related to suboptimal definition of left atrial contour. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479348 Fri, 04 Nov 2011 04:00:00 +0100 5479348 http://www.medworm.com/index.php?rid=5479347&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004387%2Fabstract%3Frss%3Dyes Conclusion: The liver shows isotropic water diffusion in cirrhotics, despite fibrotic distortion leading to decreased ADC as compared to controls. Our results emphasize that the correlation between parenchymal changes in liver fibrosis and the ADC estimate remains an elusive goal based on the state-of-the-art DWI technique. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479347 Fri, 04 Nov 2011 04:00:00 +0100 5479347 http://www.medworm.com/index.php?rid=5479346&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004326%2Fabstract%3Frss%3Dyes Conclusion: Voxel-by-voxel quantification of HCC necrosis is a more reproducible method than 2D analysis. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479346 Fri, 04 Nov 2011 04:00:00 +0100 5479346 http://www.medworm.com/index.php?rid=5479345&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004284%2Fabstract%3Frss%3Dyes Conclusions: The extent of a tumor’s blood supply had a significant effect on the temperature-decrease phase but not on the temperature-increase phase during HIFU treatment. The longer the temperature-decrease phase, the more slowly heat dissipated after HIFU, resulting in larger coagulation necrosis volumes. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479345 Fri, 04 Nov 2011 04:00:00 +0100 5479345 http://www.medworm.com/index.php?rid=5479344&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004399%2Fabstract%3Frss%3Dyes Conclusion: Development of low-grade bone lesions of calvarium is not very rare in pediatric PNET/MB survivors. Bones in the radiation therapy field need to be carefully examined for assessment of secondary lesions. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479344 Fri, 04 Nov 2011 04:00:00 +0100 5479344 http://www.medworm.com/index.php?rid=5479341&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004314%2Fabstract%3Frss%3Dyes Conclusion: The use of “nonaffected AIF for the bilateral MCA ROIs” was found to be the best of these AIF-ROI combinations in patients with chronic unilateral carotid or M1 severe stenosis or occlusion. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479341 Fri, 04 Nov 2011 04:00:00 +0100 5479341 http://www.medworm.com/index.php?rid=5479340&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004466%2Fabstract%3Frss%3Dyes Conclusions: Ultra-early ( (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5479340 Fri, 04 Nov 2011 04:00:00 +0100 5479340 http://www.medworm.com/index.php?rid=5391808&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211004053%2Fabstract%3Frss%3Dyes This issue of Academic Radiology contains a report by Medved et al on their experience with noncontrast breast magnetic resonance imaging (MRI) in the evaluation of breast lesions using high spectral and spatial resolution (HiSS). Within the constraints of the study protocol, the analysis of their data shows that differentiation of benign from malignant lesions using their noncontrast technique was comparable to that achieved with dynamic contrast MRI. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391808 Thu, 13 Oct 2011 04:00:00 +0100 5391808 http://www.medworm.com/index.php?rid=5288730&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003448%2Fabstract%3Frss%3Dyes With this text, Krings and colleagues have attempted to take a subspecialty-level textbook and pare it down to the essentials using a case-based format. Gone are the introductory chapters describing techniques for arterial access and the plethora of available catheters. What remains is a remarkably thorough and well-organized text that holds the reader’s attention better than any traditional textbook. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288730 Thu, 06 Oct 2011 19:40:27 +0100 5288730 http://www.medworm.com/index.php?rid=5288729&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003412%2Fabstract%3Frss%3Dyes Imaging of the fetus, neonatal, and infant brains with magnetic resonance (MR) is increasingly common, particularly outside the confines of the larger pediatric referral centers. A large percentage of these patients are imaged for potential neurological abnormalities. With this increased rate of imaging comes an increased need to understand the dynamic nature and subsequent MR appearance of fetal and neonatal brains. The Atlas of Fetal and Postnatal Brain MR is an excellent reference for rapidly determining the normal anatomy and myelination pattern expected for the fetus and infant. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288729 Thu, 06 Oct 2011 19:40:27 +0100 5288729 http://www.medworm.com/index.php?rid=5288728&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003564%2Fabstract%3Frss%3Dyes Several years ago, it occurred to me that I should organize things I had written. My adult offsprings suggested that I should write about my personal history. They insisted that I had never told them about my ancestors, my childhood, my college, my military time, or my early jobs before they grew enough to remember our family life. My wife insisted that with things organized, I could discard several dozen boxes of meaningless materials and make room for her to store things. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288728 Thu, 06 Oct 2011 19:40:27 +0100 5288728 http://www.medworm.com/index.php?rid=5288725&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003485%2Fabstract%3Frss%3Dyes Conclusions: End-of-rotation examinations are relatively straightforward to implement and facilitate recurring, structured, and meaningful resident evaluation and feedback. Future studies will explore whether examinations such as these result in improved clinical competency. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288725 Thu, 06 Oct 2011 19:40:27 +0100 5288725 http://www.medworm.com/index.php?rid=5288723&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003540%2Fabstract%3Frss%3Dyes Conclusion: Breast density measures can be automated. The associated calibration produced risk information not retrievable from the raw data representation. Although the calibrated measure produced the stronger association, the non-calibrated measures may offer an alternative to PD and other operator based methods after further evaluation, because they can be implemented automatically with a simple processing algorithm. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288723 Thu, 06 Oct 2011 19:40:27 +0100 5288723 http://www.medworm.com/index.php?rid=5288722&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003461%2Fabstract%3Frss%3Dyes Conclusions: CARP determines the display order of regions of interest depending on computer-aided detection findings. This is a variation of traditional computer-aided detection for digital mammography that has the potential to reduce interpretation times of studies with negative findings without significantly affecting sensitivity, thus allowing improved work flow efficiency in the screening environment, in which, in most settings, the majority of cases are negative. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288722 Thu, 06 Oct 2011 19:40:27 +0100 5288722 http://www.medworm.com/index.php?rid=5288720&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003606%2Fabstract%3Frss%3Dyes Conclusion: In the two considered lung cancer screening settings a range of 9.7–14.7% decrease of volume corrected Perc15 represents a statistically defined threshold to suspect a real increase of emphysema extent in serial LDCT examinations. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288720 Thu, 06 Oct 2011 19:40:27 +0100 5288720 http://www.medworm.com/index.php?rid=5288716&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003576%2Fabstract%3Frss%3Dyes Conclusions: Reticular-shaped enhancing strands on SPIR MR imaging after gadolinium injection are associated with tumor infiltration of the mesorectal fat. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288716 Thu, 06 Oct 2011 19:40:27 +0100 5288716 http://www.medworm.com/index.php?rid=5288713&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003400%2Fabstract%3Frss%3Dyes Conclusions: Doxorubicin loaded microbubbles triggered with ultrasound provided enhanced, sustained drug delivery to tumors, reduced plasma and myocardium doxorubicin levels, and arresting tumor growth. The results suggest that in situ generation of nano particles provides a superior treatment over injection of free drug and also de novo synthesized nanoparticles. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288713 Thu, 06 Oct 2011 19:40:27 +0100 5288713 http://www.medworm.com/index.php?rid=5391822&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003977%2Fabstract%3Frss%3Dyes Conclusions: The vascular permeability of rabbit VX2 tumors significantly increased after arterial pulsed heated infusion, and the protein kinase domain receptor may play a key role in this increase of tumor vascular permeability. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391822 Tue, 04 Oct 2011 04:00:00 +0100 5391822 http://www.medworm.com/index.php?rid=5391814&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003953%2Fabstract%3Frss%3Dyes Conclusion: CAD improves the sensitivity of inexperienced readers for the detection of small nodules at the expense of loss of specificity. Overall performance by means of FOM was therefore not affected. To use CAD more beneficial, readers need to improve their ability to differentiate true from false-positive CAD candidates. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391814 Mon, 03 Oct 2011 04:00:00 +0100 5391814 http://www.medworm.com/index.php?rid=5391813&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003965%2Fabstract%3Frss%3Dyes Conclusions: There was considerable variability among radiologists and substantial deviation from best medical practice with regard to the interpretation/evaluation of incidental findings at chest CT, signifying a significant need for further education. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391813 Mon, 03 Oct 2011 04:00:00 +0100 5391813 http://www.medworm.com/index.php?rid=5391820&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003989%2Fabstract%3Frss%3Dyes Conclusion: HCC diameter based on 3D measurements is significantly different than the conventional 2D measurements and may affect eligibility for liver transplantation. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391820 Fri, 30 Sep 2011 04:00:00 +0100 5391820 http://www.medworm.com/index.php?rid=5391809&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003928%2Fabstract%3Frss%3Dyes Conclusions: Precontrast HiSS imaging is a promising approach for showing lesion morphology without blooming and other artifacts caused by contrast agents. HiSS images could be used to guide subsequent dynamic contrast-enhanced MRI scans to maximize spatial and temporal resolution in suspicious regions. HiSS MRI without contrast agent injection may be particularly important for patients at risk for contrast-induced nephrogenic systemic fibrosis or allergic reactions. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391809 Fri, 30 Sep 2011 04:00:00 +0100 5391809 http://www.medworm.com/index.php?rid=5391823&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003904%2Fabstract%3Frss%3Dyes Conclusions: The proposed method for measuring a tumor’s margin outperforms existing mathematical methods on an extremely challenging data set containing many small lesions. The technique presented may be useful in discriminating between malignant and benign lesions in the context of the computer-aided diagnosis of breast cancer from MRI. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391823 Wed, 28 Sep 2011 04:00:00 +0100 5391823 http://www.medworm.com/index.php?rid=5391819&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003941%2Fabstract%3Frss%3Dyes Conclusions: On delayed phase MR images the FCF-to-liver contrast is reversed with the lesions appearing hyperintense on ECA enhanced images and hypointense on Gd-EOB-DTPA–enhanced images. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391819 Wed, 28 Sep 2011 04:00:00 +0100 5391819 http://www.medworm.com/index.php?rid=5391815&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003916%2Fabstract%3Frss%3Dyes Conclusions: For a rat model of gastric acid aspiration, DEI is capable of distinguishing between a healthy and an injured lung and more clearly than radiography reveals the full extent of the lung and the lung damage. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391815 Wed, 28 Sep 2011 04:00:00 +0100 5391815 http://www.medworm.com/index.php?rid=5288724&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003552%2Fabstract%3Frss%3Dyes Conclusion: Our analysis shows that nearly one in five patients with zero calcium score has NCP and one in three patients with zero calcium score and intermediate to high FRS have evidence of NCP on CCTA. The prognostic value of NCP in these patients needs further evaluation. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288724 Wed, 14 Sep 2011 04:00:00 +0100 5288724 http://www.medworm.com/index.php?rid=5288721&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003503%2Fabstract%3Frss%3Dyes Conclusions: Using one clinical study as a test case, it is shown that the modeling approach is feasible. More testing of the approach is needed to determine if and under what circumstances it can be used as an alternative to a full-scale MRMC study. Meanwhile, the approach can be used to determine if a new CAD algorithm is likely to improve readers' accuracy before embarking on a full-scale MRMC study. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288721 Wed, 14 Sep 2011 04:00:00 +0100 5288721 http://www.medworm.com/index.php?rid=5288719&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003539%2Fabstract%3Frss%3Dyes Conclusion: Tumor volume measurements were highly reproducible and accurate for irregular, spherical phantoms and patient tumors with nonuniform dimensions. Response classifications obtained from multidimensional measurements suggest that 3D measurements provide higher sensitivity to tumor response. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288719 Wed, 14 Sep 2011 04:00:00 +0100 5288719 http://www.medworm.com/index.php?rid=5391812&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003588%2Fabstract%3Frss%3Dyes Conclusion: Normalized rCBF measurement by ASL may perform better than morphological analysis based on the VBM procedure in discriminating AD patients from healthy control subjects. The combination of the two approaches was more effective than either method alone. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391812 Mon, 12 Sep 2011 04:00:00 +0100 5391812 http://www.medworm.com/index.php?rid=5198952&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002625%2Fabstract%3Frss%3Dyes In the introduction to The Human Brain in 1492 Pieces, neurosurgeon and neuromicroanatomist Dr Albert L. Rhoton, Jr. accurately describes this interactive CD-ROM as “the future of brain atlases.” The challenge of neuroanatomy is that the brain, composed largely of structures nested within other structures, does not lend itself well to three-dimensional illustrations. Consequently, traditional brain atlases have relied heavily on slice anatomy, sacrificing the three-dimensional relationships that are so important for spatial understanding. The Human Brain attempts to overcome this obstacle by using three-dimensional computer modeling to make an interactive atlas that the viewer can manipulate at will. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198952 Thu, 08 Sep 2011 09:16:13 +0100 5198952 http://www.medworm.com/index.php?rid=5198951&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002637%2Fabstract%3Frss%3Dyes This book is one of a multibook series published by Thieme (series title RadCases), each covering a major subspecialty of radiology. As with the others, it is a compilation of 100 cases geared toward giving radiology residents a review of commonly encountered and need-to-know diagnoses. Each unknown case is presented on a single page, with the diagnosis and discussion on the following page. The overall format is easy to follow, and lends itself to short sessions but can certainly be read straight through. The text’s large (but thin) size allows full or near-full resolution image recreation, which is very useful for some of the more subtle findings. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198951 Thu, 08 Sep 2011 09:15:38 +0100 5198951 http://www.medworm.com/index.php?rid=5198950&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003473%2Fabstract%3Frss%3Dyes Over the years when I have written these Chronicles, I have reported on the status of Katie, the world's greatest granddaughter in our family, on several occasions. Now she has turned 11, completed the fifth grade with all “A” grades, and, because California schools have had to cut back with tax problems, she is about to start the sixth grade in a private school. Katie is the product of joint custody between her father and mother, who split some years ago. They agreed to live in the same area and share her days. Both of them have remarried, which adds some complications to the arrangements. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198950 Thu, 08 Sep 2011 09:15:02 +0100 5198950 http://www.medworm.com/index.php?rid=5198949&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002984%2Fabstract%3Frss%3Dyes Conclusions: A PACS-integrated USG breast intervention simulation exercise increases residents' procedural confidence and understanding of the ACR practice guideline for the performance of USG percutaneous breast interventional procedures. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198949 Thu, 08 Sep 2011 09:14:24 +0100 5198949 http://www.medworm.com/index.php?rid=5198948&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003059%2Fabstract%3Frss%3Dyes Conclusion: RF ablation of lung tissue affects coagulation necrosis, causing scar transformation. There was no damage to either great vessels or bronchi. The application of RF ablation for tumors located in or near functional structures appears feasible without severe complications. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198948 Thu, 08 Sep 2011 09:13:55 +0100 5198948 http://www.medworm.com/index.php?rid=5198947&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002613%2Fabstract%3Frss%3Dyes Conclusions: Computed tomographic perfusion can dynamically monitor the pathologic processes of liver I/R and reveal the underlying microvascular disorder, improving clinical management after liver surgery. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198947 Thu, 08 Sep 2011 09:13:25 +0100 5198947 http://www.medworm.com/index.php?rid=5198946&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003370%2Fabstract%3Frss%3Dyes Standard analog mammography is a screening success story with the proven capacity to reduce mortality from breast cancer . Conventional full-field digital mammography (FFDM) has improved the ability to detect breast cancer in select patient populations . Unfortunately, the accuracy of both analog and digital mammography remains low, with sensitivities reported at 36%–70% depending on breast tissue density and recall rates for many practitioners remaining well above the 5%–10% target range . (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198946 Thu, 08 Sep 2011 09:13:07 +0100 5198946 http://www.medworm.com/index.php?rid=5198945&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002601%2Fabstract%3Frss%3Dyes Conclusions: In FDG PET scan, thymus activity was common in hyperthyroidism patients; this should not be misdiagnosed as a malignancy in patients exhibiting weight loss. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198945 Thu, 08 Sep 2011 09:12:17 +0100 5198945 http://www.medworm.com/index.php?rid=5198941&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002996%2Fabstract%3Frss%3Dyes Conclusions: Small-airway AT segmentation in conjunction with emphysema segmentation through computer-assisted methodologies may provide better correlations with key PFT parameters, suggesting that the quantification of emphysema-related and small airway–related components of AT from thoracic HRCT has great potential to elucidate phenotypic differences in patients with chronic obstructive pulmonary disease. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198941 Thu, 08 Sep 2011 09:09:37 +0100 5198941 http://www.medworm.com/index.php?rid=5198940&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002571%2Fabstract%3Frss%3Dyes Conclusions: Monoenergetic imaging of dual-energy CT improves quality of CT images in patients with metal orthopedic devices after fracture. Reformatted images at 130 keV have the optimal quality for total, internal, and external metal orthopedic devices. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198940 Thu, 08 Sep 2011 09:09:09 +0100 5198940 http://www.medworm.com/index.php?rid=5391811&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100359X%2Fabstract%3Frss%3Dyes Conclusion: ICA-EDV is the parameter that better correlates with CPoS. Nevertheless, ICA-PSV maintained a highly significant correlation with CPoS. Moreover, the categorization of Doppler parameters in five progressive classes of severity of stenosis could provide physicians with an easily accessible tool in clinical practice, complementary to the morphological evaluation of cross-sectional stenosis. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5391811 Mon, 05 Sep 2011 04:00:00 +0100 5391811 http://www.medworm.com/index.php?rid=5288727&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003515%2Fabstract%3Frss%3Dyes High-resolution computed tomography is a necessary tool used in the diagnosis of interstitial lung disease. The interpretation of high-resolution computed tomography can be difficult given the wide spectrum of imaging appearances within the same disease and among different diseases. The authors provide a new educational method to learn about the spectrum of idiopathic interstitial lung disease through the use of a free online digital atlas and review article. This atlas can be downloaded at http://www.seattlechildrens.org/radiologyeducation/ILD. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288727 Mon, 05 Sep 2011 04:00:00 +0100 5288727 http://www.medworm.com/index.php?rid=5288726&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003497%2Fabstract%3Frss%3Dyes Conclusions: Most clinicians did not change their CT scan ordering after receiving education about radiation from a radiologist. Radiation education allowed clinicians to discuss CT benefits and risks with their patients and to choose appropriate CT protocols. Referring physician groups are interested in this topic, and radiologists should be encouraged to give radiation lectures to them. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288726 Mon, 05 Sep 2011 04:00:00 +0100 5288726 http://www.medworm.com/index.php?rid=5288714&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003527%2Fabstract%3Frss%3Dyes Conclusions: Quantification of hepatic fat content on 1H-MRS showed high correlation with histologic and biochemical steatosis determination. In comparison to DECT, it is more suitable to reflect the severity of acute fatty liver. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288714 Mon, 05 Sep 2011 04:00:00 +0100 5288714 http://www.medworm.com/index.php?rid=5288712&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100345X%2Fabstract%3Frss%3Dyes Conclusion: Having obtained at least one NIH grant was associated with a higher h-index, yet multiple or large grants, such as those for program projects, were not predictive of higher h-indices. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288712 Mon, 29 Aug 2011 04:00:00 +0100 5288712 http://www.medworm.com/index.php?rid=5288715&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003394%2Fabstract%3Frss%3Dyes Conclusions: Most abdominopelvic errors in this study were classified as false-negatives. Many can be attributed to satisfaction-of-search errors. Implementing a simple, semiautomated QUIP allows timely feedback regarding errors to radiologists. This may improve the quality of health care while allowing radiologists the opportunity to learn from each case they are involved in. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288715 Mon, 22 Aug 2011 04:00:00 +0100 5288715 http://www.medworm.com/index.php?rid=5288718&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003436%2Fabstract%3Frss%3Dyes Conclusions: The new emphysema quantification method presented in this report is accurate and reproducible and, thanks to its standardization method, robust to changes in the reconstruction parameters. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288718 Fri, 19 Aug 2011 04:00:00 +0100 5288718 http://www.medworm.com/index.php?rid=5288717&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003424%2Fabstract%3Frss%3Dyes Conclusion: Verification bias is underrecognized and potentially common in published estimates of the sensitivity and specificity of MRI for the diagnosis of meniscal tears. When possible, it should be avoided by proper study design. If unavoidable, it should be acknowledged. Investigators should tabulate unverified as well as verified data. Finally, verification bias should be estimated; if present, corrected estimates of sensitivity and specificity should be used. Our online web-based calculator makes this process relatively easy. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288717 Fri, 19 Aug 2011 04:00:00 +0100 5288717 http://www.medworm.com/index.php?rid=5288711&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003060%2Fabstract%3Frss%3Dyes Breast cancer is the second leading cause of cancer death among women in United States . In a departure from current guidelines, the most recent update of United States Preventive Services Task Force (USPSTF) recommends biennial screening film mammography for women age 50–74 years. For women age 40–49 years, no recommendation for screening is made; rather, the decision is left to the individual woman and her physician. Finally, there is no recommendation for screening in women 75 years of age or older because of insufficient evidence to assess the additional benefits and harms of screening mammography . This update was based on a new systematic review investigating “mortality” and “life year gained” with the implementation of screening mammography in women age 40–49 years and... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5288711 Thu, 11 Aug 2011 04:00:00 +0100 5288711 http://www.medworm.com/index.php?rid=5198936&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003047%2Fabstract%3Frss%3Dyes Conclusions: ADC may be a useful marker in predicting progression-free survival in patients with HNSCC undergoing induction chemotherapy. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198936 Wed, 10 Aug 2011 23:00:00 +0100 5198936 http://www.medworm.com/index.php?rid=5198933&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003382%2Fabstract%3Frss%3Dyes As more and more evidence about the long-term benefits of mammography screening in terms of mortality reduction is becoming publicly available, the role of mammography in the overall schema of screening for the early detection of breast cancer becomes less controversial . Mammography, in general, and full-field digital mammography (FFDM), in particular (or some modification thereof), is likely to remain a primary screening tool for the foreseeable future despite the less than optimal sensitivity and specificity associated with this approach to imaging of the breast for this purpose . To date, it appears that most recommendations for improving screening programs with additional imaging expect the “new” modalities to supplement, rather than replace, mammography . Women with heterogeneous... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198933 Sun, 07 Aug 2011 23:00:00 +0100 5198933 http://www.medworm.com/index.php?rid=5099734&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100242X%2Fabstract%3Frss%3Dyes One of a 12-book series aimed at providing the essential information in each of the main imaging subspecialties for radiology trainees and professionals, Breast Imaging: The Requisites lives up to the high standards set by the other volumes in the series. The text is well organized and clear, covering the need-to-know facts in the area of breast imaging. Images are high quality and well chosen to illustrate key mammographic, ultrasound, magnetic resonance imaging and 2-[18F]fluoro-2-deoxyglucose positron emission tomographic/computed tomographic findings. At the conclusion of each chapter, key elements are summarized. Short quizzes are included for many of the chapters, reinforcing these concepts. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099734 Sat, 06 Aug 2011 22:35:42 +0100 5099734 http://www.medworm.com/index.php?rid=5099733&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211000833%2Fabstract%3Frss%3Dyes This first-edition, case review book of neuroradiology is a great review book for radiology residents reviewing for oral boards and for neuroradiologists reviewing for their certificates of added qualifications. It is also a useful resource for general radiologists who are interested in a rapid review of neuroradiology. It can be used for rapid review of imaging features and generating short differential diagnoses. The book makes use of current literature, which is cited at the end of the book for easy reference. This book is presented in a format similar to the Thieme’s Case Review series, except that there are no questions shown with each case. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099733 Sat, 06 Aug 2011 22:35:42 +0100 5099733 http://www.medworm.com/index.php?rid=5099732&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002558%2Fabstract%3Frss%3Dyes Last June, I agreed to start on a diet when my internist accused me of risking diabetes with excessive weight of 235 pounds at my advanced age. I wrote about my start in the Chronicle for the November 2010 issue. Now, in June 2011, I am writing about my finish—minus 55 pounds from my plump beginning 10 months ago. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099732 Sat, 06 Aug 2011 22:35:42 +0100 5099732 http://www.medworm.com/index.php?rid=5099728&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002467%2Fabstract%3Frss%3Dyes Conclusion: This study fails to demonstrate that the incremental use of MRI for placenta accreta changes delivery mode in stratified analysis. Patients who underwent both US and MRI were most likely to have a cesarean hysterectomy delivery, and required more blood products, suggesting that undergoing tests may be indicative of an abnormal and at risk patient population. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099728 Sat, 06 Aug 2011 22:35:40 +0100 5099728 http://www.medworm.com/index.php?rid=5099719&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002546%2Fabstract%3Frss%3Dyes Conclusion: Cho/NAA and NAA/Cr were the two ratios with the best discriminating ability and both had better discriminating ability than their corresponding normalized ratios (Area under the curve = 0.92 versus 0.77, AUC= 0.85 vs. 0.66), respectively. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099719 Sat, 06 Aug 2011 22:35:36 +0100 5099719 http://www.medworm.com/index.php?rid=5099713&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002674%2Fabstract%3Frss%3Dyes The US system of health care has been subject to numerous criticisms, citing costly and inefficient care delivery, fragmented and heterogeneous resource utilization, and lower life expectancy per health care dollar spent compared to other countries. The application of evidence-based medicine, using the best available scientific evidence in clinical decision making, seeks to address these criticisms. However, generating the appropriate evidence to inform clinical decision making, policy, and health care coverage remains a critical issue, especially as options for the prevention, diagnosis, and treatment of disease exponentially grow. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099713 Sat, 06 Aug 2011 22:35:34 +0100 5099713 http://www.medworm.com/index.php?rid=5198934&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003011%2Fabstract%3Frss%3Dyes Conclusions: Quantitative TB structural measures are highly sensitive to subtle motion-induced degradation, which adversely affects precision and statistical power. The results underscore the influence of subject movement in high-resolution three-dimensional micro–magnetic resonance imaging and its correction for TB structure analysis. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198934 Thu, 04 Aug 2011 23:00:00 +0100 5198934 http://www.medworm.com/index.php?rid=5198942&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100300X%2Fabstract%3Frss%3Dyes Conclusions: In this cohort, screening detected lung cancer in early treatable stages, and women had more slow-growing adenocarcinomas than men. Most screen-detected lung cancers were surgically resectable. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198942 Wed, 03 Aug 2011 23:00:00 +0100 5198942 http://www.medworm.com/index.php?rid=5198939&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002595%2Fabstract%3Frss%3Dyes Conclusions: Agreement of MRI with clinical exam was highest for cystoceles. There was no significant difference in agreement using the MPL or PCL, suggesting that either line can be used on MRI. The average differences between the PCL and MPL at the bladder base and vaginal apex were approximately 3 and 5 cm, respectively. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198939 Tue, 26 Jul 2011 23:00:00 +0100 5198939 http://www.medworm.com/index.php?rid=5198944&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002662%2Fabstract%3Frss%3Dyes Conclusions: CEUS may provide a new imaging method to quantitatively analyze blood perfusion of injured peripheral nerves. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198944 Sun, 24 Jul 2011 23:00:00 +0100 5198944 http://www.medworm.com/index.php?rid=5198935&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003023%2Fabstract%3Frss%3Dyes Conclusions: On the basis of this study, interhemispheric differences in the magnetic resonance images of patients with PD can be identified by the means of co-occurrence matrix–based TA. The detected areas correlate with the current pathophysiologic and neuroanatomic knowledge of PD. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198935 Sun, 24 Jul 2011 23:00:00 +0100 5198935 http://www.medworm.com/index.php?rid=5198938&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100256X%2Fabstract%3Frss%3Dyes This study investigates whether there is a significant difference in kidney sizes in patients with POEMS compared to normal controls.Materials and Methods: Calculated kidney volumes from 77 patients with POEMS syndrome who had undergone imaging by computed tomography or magnetic resonance imaging were compared to frequency-matched controls. For the POEMS patients and the controls, the volume of each kidney was obtained from a three-dimensional segmentation algorithm. Univariate and multiple variable linear regression models were used to identify any differences in kidney size between normal and POEMS patients.Results: There was a univariate statistically significant association between disease state and the difference in kidney volume; having POEMS was associated with 16.3 cm3 greater kidn... Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198938 Thu, 21 Jul 2011 23:00:00 +0100 5198938 http://www.medworm.com/index.php?rid=5198937&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211003035%2Fabstract%3Frss%3Dyes Conclusions: Compared to the water displacement method, the CISS sequence is suited best to validly and reliably measure OB volumes because of its highest values for accuracy and precision and lowest systematic bias. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198937 Thu, 21 Jul 2011 23:00:00 +0100 5198937 http://www.medworm.com/index.php?rid=5198943&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002583%2Fabstract%3Frss%3Dyes Conclusions: The disproportionate effect of low-attenuation pixels on SVg likely causes overestimation of the severity of emphysema and trapped gas. This can be significantly reduced, however, by using thick slices and a smooth filter for image reconstruction. ΔSVg is generally robust for quantifying the functional impairment of the lung in severe emphysema. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5198943 Tue, 12 Jul 2011 23:00:00 +0100 5198943 http://www.medworm.com/index.php?rid=5099723&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002406%2Fabstract%3Frss%3Dyes Conclusions: Ultrasound is accurate, reproducible, and fast in the analysis of abdominal adiposity. It offers a regional, easy, and close-at-hand evaluation of subcutaneous and visceral fat compartments. This should be taken into consideration when clinical routine examinations are performed or to evaluate patients with specific metabolic diseases before and after treatment. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099723 Sun, 03 Jul 2011 23:00:00 +0100 5099723 http://www.medworm.com/index.php?rid=4979367&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211000821%2Fabstract%3Frss%3Dyes is designed to be an accessible handbook for the study and practice of interventional radiology. Readers familiar with the large, two-volume textbook Image-Guided Interventions will recognize this handbook as a distillation of that reference text. For this new entry to Saunders’s High-Yield Imaging series, authors Dr Charles Burke and Dr Robert Dixon (both of whom are interventional radiologists and faculty members at the University of North Carolina) extracted the essential information, organized it into a bulleted-text format that is succinct and easily navigable, and updated the selection of images. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979367 Wed, 29 Jun 2011 23:37:49 +0100 4979367 http://www.medworm.com/index.php?rid=4979366&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211000870%2Fabstract%3Frss%3Dyes This collection of 320 cases is an excellent review for anyone preparing for the radiology oral board examination. Representative images and short clinical histories are provided in an easy-to-use format for quick review. Nearly every case is presented with clinical history, salient imaging findings, differential, diagnosis, and some discussion of the entity and a representative image on the facing page. Additional information and references are also provided for further study. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979366 Wed, 29 Jun 2011 23:37:49 +0100 4979366 http://www.medworm.com/index.php?rid=4979365&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211001590%2Fabstract%3Frss%3Dyes One of my somewhat questionable mental habits, when I am sitting somewhere without anything to read, is to make lists of some of the things I have done over the many years of my adult careers. I used to be able to make a list of all the airlines I had ever flown on. But now, the airlines that have merged or crashed in our country make up a longer list than those that survive. And those that are satellites of the big ones change and swap and often never admit their names to paying passengers. And I used to keep a mental list of the different types of aircraft in which I was a passenger. But I cannot remember all of those, and now even the small ones are jets, rather than the herd of propeller aircraft. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979365 Wed, 29 Jun 2011 23:37:48 +0100 4979365 http://www.medworm.com/index.php?rid=4979364&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002431%2Fabstract%3Frss%3Dyes Editor: In 1998, Academic Radiology published our study dealing with the pharmacokinetics of intravenously injected gadodiamide (Omniscan) in patients with either chronic kidney disease (CKD) stage 5 (glomerular filtration rate [GFR] (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979364 Wed, 29 Jun 2011 23:37:48 +0100 4979364 http://www.medworm.com/index.php?rid=4979358&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002078%2Fabstract%3Frss%3Dyes Rationale and Objectives: The aim of this study was to evaluate the usefulness of a novel computerized method for lung nodule detection on digital chest radiographs using temporal subtraction images.Materials and Methods: To significantly reduce the number of false-positive results while maintaining high sensitivity, temporal subtraction images, which can enhance interval changes on sequential chest radiographs, were used. Fifty-one cases with lung nodules (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979358 Wed, 29 Jun 2011 23:37:46 +0100 4979358 http://www.medworm.com/index.php?rid=4979354&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211001966%2Fabstract%3Frss%3Dyes Conclusions: Long-term follow-up data from MR-g HIFU treatments show sustained symptomatic relief among enrolled patients. Although the results are preliminary, MR-g HIFU for the treatment of uterine leiomyomata may result in acceptable long-term outcomes at 3 years. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979354 Wed, 29 Jun 2011 23:37:45 +0100 4979354 http://www.medworm.com/index.php?rid=4979352&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211001991%2Fabstract%3Frss%3Dyes Conclusion: Contrast enhancement in gliomas is primarily from a break in blood-brain barrier as evidenced by its correlation with PS and MVCP, whereas it was not statistically correlated with CBV and MVD even though it showed a positive trend. Contrast enhancement also showed significant correlation with WHO grade suggesting a biopsy from CE region in a heterogeneous glioma probably will still yield the most aggressive part of the glioma is also shown by its association with MVCP and PS estimates. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979352 Wed, 29 Jun 2011 23:37:45 +0100 4979352 http://www.medworm.com/index.php?rid=4979350&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002017%2Fabstract%3Frss%3Dyes Conclusion: WbDWI/CT image fusion is technically feasible in a clinical setting and allows the diagnostic assessment of metastatic tumor disease detecting nine of 10 lesions as compared with PET/CT. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979350 Wed, 29 Jun 2011 23:37:44 +0100 4979350 http://www.medworm.com/index.php?rid=4979348&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002492%2Fabstract%3Frss%3Dyes In 1901 Wilhelm Roentgen received the first Nobel Prize in physics for his discovery of a “new kind of ray” . In 1931, 8 years after Roentgen’s death, Otto Warburg received the Nobel Prize for physiology or medicine in part for his discovery of altered glucose metabolism in cancers . There is no evidence that they ever met, although, interestingly, some correspondence exists between Roentgen and Warburg’s father, Emile, who was a noted physicist. Remarkably, in the early 21st century, the seemingly unrelated work of these two scientific giants has spawned a vast clinical and research enterprise in which imaging of cell metabolism is providing new and critical insights into human cancer. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=4979348 Wed, 29 Jun 2011 23:37:43 +0100 4979348 http://www.medworm.com/index.php?rid=5099730&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002418%2Fabstract%3Frss%3Dyes Conclusions: Beginning independent call is associated with high anxiety, and buddy call reduces that anxiety, beyond the effect of time alone. Residents who participated in buddy call found it helpful in preparing for independent call. These findings support the use of buddy call and tiered call structures as means to introduce junior residents to independent call. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099730 Wed, 29 Jun 2011 23:00:00 +0100 5099730 http://www.medworm.com/index.php?rid=5099726&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002443%2Fabstract%3Frss%3Dyes Conclusion: Robust use of MR relaxation times as noninvasive biomarkers requires an understanding of their relative sensitivity to organ-specific physiological responses. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099726 Sun, 26 Jun 2011 23:00:00 +0100 5099726 http://www.medworm.com/index.php?rid=5099725&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002479%2Fabstract%3Frss%3Dyes Conclusion: In an ex vivo porcine liver, preinjected fluids do not benefit microwave ablation as those in radiofrequency ablation. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099725 Sun, 26 Jun 2011 23:00:00 +0100 5099725 http://www.medworm.com/index.php?rid=5099727&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002455%2Fabstract%3Frss%3Dyes Conclusion: When compared to conventional breath hold technique, the significant improvement in image quality compensated for the prolonged acquisition time. Therefore, triggered acquisition is preferred in a clinical setting because it required less from patient cooperation. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099727 Wed, 22 Jun 2011 23:00:00 +0100 5099727 http://www.medworm.com/index.php?rid=5099724&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS107663321100239X%2Fabstract%3Frss%3Dyes Conclusions: The presence and progression of cerebral SIAs on T2-weighted magnetic resonance images reflecting cerebral infection with human immunodeficiency virus are significantly related to impaired immune state as measured by CD4+ cell count. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099724 Wed, 22 Jun 2011 23:00:00 +0100 5099724 http://www.medworm.com/index.php?rid=5099722&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002170%2Fabstract%3Frss%3Dyes Conclusion: ADV bubbles may facilitate clinical HIFU ablation by reducing treatment time or requisite in situ total acoustic power and provide ultrasonic imaging feedback of the thermal therapy. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099722 Wed, 22 Jun 2011 23:00:00 +0100 5099722 http://www.medworm.com/index.php?rid=5099720&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002054%2Fabstract%3Frss%3Dyes Innovation in the field of diagnostic imaging is based primarily on the availability of new and improved equipment that opens the door for new clinical applications. Payments for these imaging procedures are subject to complex Medicare price control schemes, affecting incentives for appropriate use and innovation. Achieving a “dynamically efficient” health care system—one that elicits a socially optimal amount of innovation—requires that innovators be rewarded in relation to the value they add and can demonstrate with evidence. The authors examine how and whether value-based reimbursement for diagnostic imaging services might better reward innovation explicitly for expected improvements in health and economic outcomes. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099720 Wed, 22 Jun 2011 23:00:00 +0100 5099720 http://www.medworm.com/index.php?rid=5099717&cid=s_30466_37_f&fid=30466&url=http%3A%2F%2Fwww.academicradiology.org%2Farticle%2FPIIS1076633211002157%2Fabstract%3Frss%3Dyes Conclusions: At a prevalence of approximately 5% for PE, the number of FPs approaches or is greater than the number of TPs for CTPA for the detection of suspected acute PE. Patients with FP results may receive unnecessary, potentially harmful treatment with anticoagulation therapy. Population prevalence of disease needs to be taken into account along with the diagnostic accuracy of a test, because this may significantly affect downstream patient outcomes. (Source: Academic Radiology) Academic Radiology journals http://www.medworm.com/rss/comments.php?id=5099717 Wed, 22 Jun 2011 23:00:00 +0100 5099717