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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 39.
The Enamel Microstructures of Bovine Mandibular Incisors.
Abstract Bovine teeth have been considered as an excellent substitute for human teeth for dental research, however, the enamel microstructures of bovine incisors that include arrangements of prisms and interprisms, and their spatial relationships have not been well described. The aim of this study was to investigate the detail enamel microstructures of bovine incisors. Eight bovine mandibular incisors were cut into 77 pieces at eight equal intervals either in the longitudinal direction or in the horizontal direction before each piece had been tangentially cut (parallel to enamel-dentin junction) through the middle ...
Source: Anatomical Record - July 27, 2012 Category: Anatomy Authors: Wang C, Li Y, Wang X, Zhang L, Tiantang, Fu B Tags: Anat Rec (Hoboken) Source Type: research
Clinical implications of the transversus abdominis plane block in pediatric anesthesia
This article describes the history, anatomy, and a review of the current literature on TAP blocks with an emphasis on outcomes in pediatric patients.
Source: Pediatric Anesthesia - July 27, 2012 Category: Anesthesiology Authors: Christine L. Mai, Mark J. Young, Sadeq A. Quraishi Tags: REVIEW ARTICLE Source Type: research
Prenatal nicotine exposure alters neuroanatomical organization of the developing brain
This study was designed to examine if there are morphological changes (dendritic branching, dendritic length, and spine density) in mPFC, OFC, parietal cortex, and nucleus accumbens associated with exposure to nicotine during gestation. Nicotine or saline was administered to pregnant Long Evans dams for the duration of pregnancy. Golgi‐cox techniques were used to examine neuroanatomy of offspring at postnatal day 21. The dendritic changes identified in rats exposed to nicotine prenatally resembled neuroanatomical changes that are identified in rats administered nicotine in adulthood. Of the 18 anatomical parameters measu...
Source: Synapse - July 27, 2012 Category: Neurology Authors: A. Muhammad, R. Mychasiuk, A. Nakahashi, S. Hossain, R. Gibb, B. Kolb Tags: Research Article Source Type: research
Is laparoscopic right colectomy more effective than open resection? A meta‐analysis of randomized and nonrandomized studies
Conclusion Laparoscopic‐assisted right colectomy results in less blood loss, a shorter length of hospital stay and lower postoperative short‐term morbidity compared with ORC.
Source: Colorectal Disease - July 27, 2012 Category: Gastroenterology Authors: F. Rondelli, S. Trastulli, N. Avenia, G. Schillaci, R. Cirocchi, N. Gullà, E. Mariani, G. Bistoni, G. Noya Tags: Meta‐analysis Source Type: research
Bedside echocardiography in critically ill patients: a true hemodynamic monitoring tool
This article will describe transthoracic and transesophageal echocardiography, their scope, and the classic windows needed to interpret the examination properly. We will also report the main indications of echocardiography and the corresponding parameters. Finally, we will indicate educational programs and define minimum training that enable self-sufficiency. Content Type Journal ArticleCategory INVITED REVIEWPages 1-6DOI 10.1007/s10877-012-9385-6Authors Siu-Ming Au, Intensive Care Unit, Section Thorax-Vascular Diseases-Abdomen-Metabolism, Hôpital Ambroise Paré, AP-HP, University Hospital Ambroise Paré, 9 avenu...
Source: Journal of Clinical Monitoring and Computing - July 26, 2012 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: research
Duodenal Duplication Cyst: A Potentially Malignant Disease
Conclusions For relieving symptoms and preventing further complications, such as pancreatitis or malignant transformation, surgical resection of duodenal duplication cysts is indicated. In cases of difficulties to individualize the neighboring anatomical structures preoperatively, 3D reconstruction is a helpful approach to determine the surgical strategy. Enucleation allows a total excision while minimizing the adverse effects and therefore it is our treatment of choice for duodenal duplication cysts without communication. Content Type Journal ArticleCategory Gastrointestinal OncologyPages 1-2DOI 10....
Source: Annals of Surgical Oncology - July 26, 2012 Category: Cancer & Oncology Tags: Annals of Surgical Oncology Source Type: research
Microsurgical clipping of true posterior communicating artery aneurysms
Conclusions A thorough pre-operative understanding of this unique anatomy is essential in minimising morbidity associated with microsurgical clipping of this aneurysm configuration. Content Type Journal ArticleCategory How I Do itPages 1-4DOI 10.1007/s00701-012-1435-9Authors Gregory A. Kuzmik, Yale School of Medicine, New Haven, CT, USAKetan R. Bulsara, Department of Neurosurgery, Yale School of Medicine, PO Box 208082, New Haven, CT 06520, USA Journal Acta NeurochirurgicaOnline ISSN 0942-0940Print ISSN 0001-6268
Source: Acta Neurochirurgica - July 26, 2012 Category: Neurology Tags: Acta Neurochirurgica Source Type: research
High Definition Fiber Tracking Images Accurately Reflect Brain Fiber Anatomy, Says Pitt/UPMC Team
High definition fiber tracking, or HDFT, provides colorful, detailed images of the brain's fiber network that accurately reflect brain anatomy observed in surgical and laboratory studies, according to a new report from the University of Pittsburgh School of Medicine in the August issue of Neurosurgery. The findings support the notion that HDFT scans can provide valuable insight into patient symptoms and the prospect for recovery from brain injuries, and can help surgeons plan their approaches to remove tumors and abnormal blood vessels in the brain...
Source: Health News from Medical News Today - July 26, 2012 Category: Consumer Health News Tags: Neurology / Neuroscience Source Type: news
Ultrasound of penetrating ocular injury in a combat environment
Penetrating eye injuries are uncommon in a civilian environment, but unfortunately, very common in a military emergency department. Ultrasound of the eye is quick, reliable, accurate, and easy to learn. This review aims to demonstrate normal anatomy and penetrating injuries of the anterior and posterior compartments of the eye.
Source: Clinical Radiology - July 26, 2012 Category: Radiology Authors: D.A.T. Gay, J.V. Ritchie, J.N. Perry, S. Horne Tags: Pictorial Reviews Source Type: research
Maximal Venous Outflow Velocity: An Index for Iliac Vein Obstruction
Leg swelling is a common cause for vascular surgical evaluation, and iliocaval obstruction due to May–Thurner syndrome (MTS) can be difficult to diagnose. Physical examination and planar radiographic imaging give anatomic information but may miss the fundamental pathophysiology of MTS. Similarly, duplex ultrasonographic examination of the legs gives little information about central impedance of venous return above the inguinal ligament. We have modified the technique of duplex ultrasonography to evaluate the flow characteristics of the leg after tourniquet-induced venous engorgement, with the objective of revealing ilioc...
Source: Annals of Vascular Surgery - July 26, 2012 Category: Surgery Authors: T. Matthew Jones, David C. Cassada, R. Eric Heidel, Oscar G. Grandas, Scott L. Stevens, Michael B. Freeman, James D. Edmondson, Mitchell H. Goldman Tags: Clinical Research Source Type: research
Vertebral levels of key landmarks in the neck
This study aimed to investigate the vertebral levels of the hard palate, hyoid bone, thyroid cartilage, cricoid cartilage, and bifurcation of the common carotid artery (CCA) using computed tomography (CT). After excluding patients with distorting pathology, 52 CT scans of the neck from supine adults with a standardized head position (mean age 63 ± 17 years, range 30–94 years; 21 female) were available for analysis by dual consensus reporting. Only the vertebral level of the hard palate (C1) was consistent with contemporary descriptions. Other landmarks were located most frequently at the following vertebral levels: the ...
Source: Clinical Anatomy - July 26, 2012 Category: Anatomy Authors: S. Ali Mirjalili, Sarah L. McFadden, Tim Buckenham, Mark D. Stringer Tags: Original Communication Source Type: research
Rotator cuff muscles perform different functional roles during shoulder external rotation exercises
AbstractThe aim of this study was to compare activity in shoulder muscles during an external rotation task under conditions of increasing arm support to investigate whether changing support requirements would influence muscle recruitment levels, particularly in the rotator cuff (RC) muscles. Electromyographic recordings were collected from seven shoulder muscles using surface and indwelling electrodes. The dominant shoulder of 14 healthy participants were examined during dynamic shoulder external rotation performed at 90° abduction with the arm fully supported, partially supported, and unsupported. Linear regressions betw...
Source: Clinical Anatomy - July 26, 2012 Category: Anatomy Authors: Daniel T. Tardo, Mark Halaki, Ian Cathers, Karen A. Ginn Tags: Original Communication Source Type: research
The neglected cranial nerve: Nervus terminalis (cranial nerve N)
AbstractThe nervus terminalis (NT; terminal nerve) was clearly identified as an additional cranial nerve in humans more than a century ago yet remains mostly undescribed in modern anatomy textbooks. The nerve is referred to as the nervus terminalis because in species initially examined its fibers were seen entering the brain in the region of the lamina terminalis. It has also been referred to as cranial nerve 0, but because there is no Roman symbol for zero, an N for the Latin word nulla is a better numerical designation. This nerve is very distinct in human fetuses and infants but also has been repeatedly identified in ad...
Source: Clinical Anatomy - July 26, 2012 Category: Anatomy Authors: Joel A. Vilensky Tags: Review Source Type: research
The calcaneus channel: A propos of a new anatomical variant
Source: Clinical Anatomy - July 26, 2012 Category: Anatomy Authors: Ernesto Lima Araujo Melo Tags: Compendium of Anatomical Variants Source Type: research
The obliquus capitis inferior myodural bridge
In conclusion, the OCI was attached to the dura mater in all of the 14 muscle specimens. We hypothesize that the OCI myodural bridge may play a physiological role in monitoring dural tension and preventing dural infolding. It may also contribute to certain clinical symptoms manifesting from alterations in dural tone. Clin. Anat. 2012. © 2012 Wiley Periodicals, Inc.
Source: Clinical Anatomy - July 26, 2012 Category: Anatomy Authors: Matthew E. Pontell, Frank Scali, Ewarld Marshall, Dennis Enix Tags: Original Communication Source Type: research
Clinical Ramifications of Giant Paraesophageal Hernias Are Underappreciated: Making the Case for Routine Surgical Repair [ORIGINAL ARTICLES: GENERAL THORACIC]
Conclusions Paraesophageal hernia is associated with a greater diversity of symptomatic presentation than previously thought. Asymptomatic patients are rare, and size and configuration of the hernia are associated with specific symptoms. Patients with large PEHs should be assessed by an experienced surgeon for elective repair.
Source: The Annals of Thoracic Surgery - July 26, 2012 Category: Cardiovascular & Thoracic Surgery Authors: Carrott, P. W., Hong, J., Kuppusamy, M., Koehler, R. P., Low, D. E. Tags: Esophagus - other ORIGINAL ARTICLES: GENERAL THORACIC Source Type: research
Off-Pump Complete Pericardiectomy for an Unusual Case of Annular Constrictive Pericarditis [CASE REPORTS]
We describe a case of a 64-year-old man with constrictive pericarditis of unusual anatomy. Preoperative investigations revealed the thickened and calcified pericardial ring encircling the right and left ventricular cavity at the level of the atrioventricular (AV) groove and crossing the left anterior descending coronary artery, leading to strangulation of the heart. Off-pump complete pericardiectomy was performed successfully. The patient's postoperative course was uneventful.
Source: The Annals of Thoracic Surgery - July 26, 2012 Category: Cardiovascular & Thoracic Surgery Authors: Matsuno, Y., Shimabukuro, K., Ishida, N., Takemura, H. Tags: Pericardium CASE REPORTS Source Type: research
Why SIT Works: Normal Function Despite Typical Myofiber Pattern in Situs Inversus Totalis (SIT) Hearts Derived by Shear-induced Myofiber Reorientation
by Marieke Pluijmert, Wilco Kroon, Alessandro C. Rossi, Peter H. M. Bovendeerd, Tammo Delhaas The left ventricle (LV) of mammals with Situs Solitus (SS, normal organ arrangement) displays hardly any interindividual variation in myofiber pattern and experimentally determined torsion. SS LV myofiber pattern has been suggested to result from adaptive myofiber reorientation, in turn leading to efficient pump and myofiber function. Limited data from the Situs Inversus Totalis (SIT, a complete mirror image of organ anatomy and position) LV demonstrated an essential different myofiber pattern, being normal at the apex but mi...
Source: PLoS Computational Biology - July 26, 2012 Category: Biology Authors: Marieke Pluijmert et al. Source Type: research
Current state of computer-assisted trauma surgery
This article will outline the current state of computer assisted trauma surgery including its implications and specific challenges in orthopaedic trauma surgery. Content Type Journal ArticleCategory Trauma (MJ Gardner, Section Editor)Pages 1-8DOI 10.1007/s12178-012-9133-zAuthors Barbara M. Dirhold, Trauma Department, Hannover Medical School, Carl Neuberg-Str. 1, 30625 Hannover, GermanyMustafa Citak, Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstr. 2, 22767 Hamburg, GermanyHesham Al-Khateeb, Royal National Orthopaedic Hospital, John Charnley Trust, Stanmore, HA7 4LP UKCarl Haasper, Department of ...
Source: Current Reviews in Musculoskeletal Medicine - July 25, 2012 Category: Orthopaedics Tags: Current Reviews in Musculoskeletal Medicine Source Type: research
Proteinuria in the elderly: evaluation and management
Abstract While aging is accompanied by many age-related changes in renal physiology and function, proteinuria should not be considered to be a part of “normal aging”. There are many age-prevalent illnesses that predispose one to developing proteinuria and early recognition, and treatment may help retard disease progression or offer an early cure. The presence of proteinuria warrants further evaluation and follow-up if one has any hope of avoiding its progression and delaying the initiation of treatment. This review article will discuss the anatomy and physiology of the aging kidney, the pathophysiology a...
Source: International Urology and Nephrology - July 25, 2012 Category: Urology & Nephrology Tags: International Urology and Nephrology Source Type: research
Transdermal delivery of three vitamin C derivatives by Er:YAG and carbon dioxide laser pretreatment
In conclusion, optimal fluency for all derivatives was 5 W for the CO2 laser and 3.8 to 5 J/cm2 for the Er:YAG laser. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s10103-012-1151-yAuthors Chun-Hsun Huang, Department of Cosmetic Science, Chang Gung University of Science and Technology, Taoyuan, 333 TaiwanHsin-Ching Sung, Department of Anatomy, College of Medicine, Chang Gung University, Taoyuan, 333 TaiwanChien-Yu Hsiao, Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, Taoyuan, 333 TaiwanSindy Hu, Department of Cosmetic Science, Chang...
Source: Lasers in Medical Science - July 25, 2012 Category: Laser Surgery Tags: Lasers in Medical Science Source Type: research
Intraoperative magnetic resonance imaging during surgery for pituitary adenomas: pros and cons
Abstract Surgery for pituitary adenomas still remains a mainstay in their treatment, despite all advances in sophisticated medical treatments and radiotherapy. Total tumor excision is often attempted, but there are limitations in the intraoperative assessment of the radicalism of tumor resection by the neurosurgeon. Standard postoperative imaging is usually performed with a few months delay from the surgical intervention. The purpose of this report is to review briefly the facilities and kinds of intraoperative magnetic resonance imaging for all physician and surgeons involved in the management of pituitary ...
Source: Endocrine - July 25, 2012 Category: Endocrinology Tags: Endocrine Source Type: research
Establishment of parameters for congenital stenosis of the cervical spine: an anatomic descriptive analysis of 1066 cadaveric specimens
Conclusions Based on our study of a large population of adult skeletal specimens, we have defined CCS at each level. Values of SCD < 13 mm and IPD < 23 mm are strongly associated with the presence of CCS at all levels. Content Type Journal ArticleCategory Original ArticlePages 1-8DOI 10.1007/s00586-012-2437-2Authors Navkirat S. Bajwa, Case Western Reserve University, University Hospitals, 13612 Silver Road, Garfield Heights, OH 44125, USAJason O. Toy, Department of Orthopaedics and Rehabilitation, Yale School of Medicine, 800 Howard Ave 1st Floor, New Haven, CT 065...
Source: European Spine Journal - July 25, 2012 Category: Orthopaedics Tags: European Spine Journal Source Type: research
Preprocedural Imaging for Patients with Atrial Fibrillation and Heart Failure
We describe new research associated with preprocedural imaging in these patient cohorts. Content Type Journal ArticleCategory Invasive Electrophysiology and Pacing (J Singh, Section Editor)Pages 1-9DOI 10.1007/s11886-012-0293-7Authors Wai-ee Thai, Cardiac MR PET CT Program, Division of Cardiology and Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Boston, MA 02114, USABryan Wai, Cardiac MR PET CT Program, Division of Cardiology and Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Boston, MA 02114, USAQuynh A...
Source: Current Cardiology Reports - July 25, 2012 Category: Cardiology Tags: Current Cardiology Reports Source Type: research
The interpretation of the figure of the prophet Jonah by Michelangelo on the ceiling of the sistine chapel: anatomical urological vision
CONCLUSIONS: This description helps to confirm the relationship of the Renaissance art with the human anatomy; science has been much studied in this period. The design of a cross section of the penis is revealed with the two cavernous bodies with the septum between them and the spongy body. Considering the circumstances in which Michelangelo had painted, subjectivity was fundamental due to religious motivations added to the vigorous implications of a limited scientific knowledge typical of that era.
Source: International Braz J Urol - July 25, 2012 Category: Urology & Nephrology Source Type: research
Radial Styloid Fractures
Radial styloid fractures can occur in isolation or in association with other injuries, including complex intra-articular distal radius fractures, carpal fractures, carpal dislocations, and radiocarpal dislocations. The anatomy surrounding the radial styloid is complex, and complications related to surgical approach, treatments, and symptomatic hardware can occur. Operative treatments vary according to the injury pattern present, and pattern recognition is the key to optimizing treatment of these injuries. Outcomes are related to the precision of the reconstruction as well as the magnitude of the injury; better results are ...
Source: The Journal of Hand Surgery - July 25, 2012 Category: Surgery Authors: Lee M. Reichel, Bryce R. Bell, Stuart M. Michnick, Charles A. Reitman Tags: Current Concepts Source Type: research
An Anatomical Study of the Watershed Line on the Volar, Distal Aspect of the Radius: Implications for Plate Placement and Avoidance of Tendon Ruptures
Conclusions: The watershed line might not be a distinct line, and it corresponds to the distal margin of the pronator fossa in the lateral half of the volar radius and to a hypothetical line between the distal and proximal lines in the medial half. The medial and lateral bony prominences on the volar radius should be key structures for accurate plate placement to avoid flexor tendon injury. Clinical relevance: The present study suggests bony landmarks for positioning a volar locking plate.
Source: The Journal of Hand Surgery - July 25, 2012 Category: Surgery Authors: Junya Imatani, Keiichi Akita, Kumiko Yamaguchi, Hirotaka Shimizu, Hidenori Kondou, Toshifumi Ozaki Tags: Scientific Articles Source Type: research
Prostate vascular anatomy: cadaveric study and angiographic correlation
Source: Journal of Vascular and Interventional Radiology : JVIR - July 25, 2012 Category: Radiology Authors: R. Garcia-Monaco, O. Peralta, P.S. Rodriguez, M.P. Jaraquemada, J. Golzarian Tags: Other Content Source Type: research
The body as a living bioreactor: a feasibility study of pedicle flaps for tracheal transplantation
Abstract Reconstruction of long-segment tracheal stenosis remains problematic. Ex vivo transplantation of stem cell-derived tracheas has been established in humans using external tissue bioreactors. These bioreactors, however, are not widely accessible. Thus, we are developing a rotational flap-based “internal bioreactor” to allow in vivo stem cell engraftment in a pre-vascularized recipient bed. This muscle will also then serve as a carrier for the transplanted trachea during rotation into position for airway reconstruction. Herein, we present a study investigating the feasibility of two pedicle muscle ...
Source: European Archives of Oto-Rhino-Laryngology - July 25, 2012 Category: ENT & OMF Tags: European Archives of Oto-Rhino-Laryngology Source Type: research
Variations in bifid superior transverse scapular ligament as a possible factor of suprascapular entrapment: an anatomical study
Conclusion Knowledge of the variations of the superior transverse scapular ligament is important for better understanding of the possible anatomical conditions that can promote suprascapular nerve entrapment. Its morphology should also be taken into particular consideration during surgical and arthroscopic procedures. Content Type Journal ArticleCategory Original PaperPages 1-6DOI 10.1007/s00264-012-1618-2Authors Michał Polguj, Department of Angiology, Chair of Anatomy, Medical University of Łódź, Narutowicza 60, Łódź, 90-136 PolandKazimierz Jędrzejewski, Department of Normal and Clinical An...
Source: International Orthopaedics - July 25, 2012 Category: Orthopaedics Tags: International Orthopaedics Source Type: research
We thank Dr. McEvoy and colleagues for their comments on our paper (). The patients included in this report of the SPARC (Study of Myocardial Perfusion and Coronary Anatomy Imaging Roles in Coronary Artery Disease [CAD]) registry did not have a prior history of CAD and were required to have intermediate to high pretest likelihood of CAD. The SPARC exclusion criteria mandated that patients be clinically stable. Thus, patients with unstable angina (resting chest pain) within 48 h of testing were excluded.
Source: Journal of the American College of Cardiology - July 25, 2012 Category: Cardiology Authors: Rory Hachamovitch, Marcelo F. Di Carli, SPARC Investigators Tags: Letters to the Editor Source Type: research
Rhinotillexis: A Possible Heuristic to Reduce Inappropriate Noninvasive Cardiac Imaging?
Hachamovitch et al. () presented findings from the prospectively acquired SPARC (Study of Myocardial Perfusion and Coronary Anatomy Imaging Roles in Coronary Artery Disease [CAD]) registry. Enrolled patients had intermediate to high likelihood of CAD and were referred for “clinically indicated” noninvasive cardiac imaging tests. The authors reported data on medication changes as well as referrals for both cardiac catheterization and revascularization at 90 days, based on results of these imaging tests. One of the main findings was a concerning lack of medical therapy optimization and cardiac catheterization referrals i...
Source: Journal of the American College of Cardiology - July 25, 2012 Category: Cardiology Authors: John W. McEvoy, Michael J. Blaha, Roger S. Blumenthal Tags: Letters to the Editor Source Type: research
Accessing Flash Content on the iPad
Apple’s iPad tablet, along with the iPhone and iPod Touch mobile devices, cannot natively play content that is Flash-based, like some videos, interactive sites, tutorials and games. The reason that Apple made the decision to not allow Flash to operate on these devices is debated in online forums, but Apple’s official published reason can be summed up by saying that the late Steve Jobs disagreed with Flash being a controlled and closed system. If this decision is something you’re interested in knowing more about, here is Jobs’s open letter on the issue. Adobe itself (the company behind Flash) has annou...
Source: Dragonfly - July 25, 2012 Category: Databases & Libraries Authors: Mahria Lebow Tags: Technology Source Type: news
Melanoma cell-derived factors stimulate hyaluronan synthesis in dermal fibroblasts by upregulating HAS2 through PDGFR-PI3K-AKT and p38 signaling
Abstract In many cancers hyaluronan content is increased, either by tumor cells or the surrounding stromal cells and this increased hyaluronan content correlates with unfavorable clinical prognosis. In the present work, we studied the effects of melanoma cell (aggressive melanoma cell line C8161)-derived factors on fibroblast hyaluronan synthesis, intracellular signaling, MMP expression and invasion. Treatment of the fibroblast cultures with melanoma cell conditioned medium (CM) caused accumulation of hyaluronan in the culture medium and formation of thick pericellular hyaluronan coat and hyaluronan cables. ...
Source: Histochemistry and Cell Biology - July 25, 2012 Category: Biomedical Science Tags: Histochemistry and Cell Biology Source Type: research
Immunohistochemical expression of cyclooxygenase-2 in patients with advanced cancer of the larynx who have undergone induction chemotherapy with the intention of preserving phonation
Conclusions COX2 overexpression was a common finding in our study. The results obtained did not reveal relationships with established prognostic categories; however, the difference in survival between patients with and without COX2 expression justifies the need for future prospective studies that utilise a larger patient sample size. Content Type Journal ArticleCategory Research ArticlePages 1-7DOI 10.1007/s12094-012-0859-2Authors Elisabeth Pérez-Ruiz, Division of Medical Oncology, Oncology department, Hospital Costa del Sol, Autovía A-7, Km 187, C. P. 29603 Marbella, Malaga, SpainO. Cazorla, Divi...
Source: Clinical and Translational Oncology - July 25, 2012 Category: Cancer & Oncology Tags: Clinical and Translational Oncology Source Type: research
Distance-to-Agreement Investigation of Tomotherapy's Bony Anatomy-Based Autoregistration and Planning Target Volume Contour-Based Optimization
Conclusions: We find that there is an average improvement of approximately 1 mm in terms of maxDTA on the PTV going from 4-dof bony anatomy-based autoregistration to the 4-dof contour-based optimization. Pearson correlation analysis of the 2 4-dof optimizations suggests that uncertainties due to deformation and inadequate resolution account for much of the compensating parameters, but pitch variation also makes a statistically significant contribution.
Source: International Journal of Radiation Oncology * Biology * Physics - July 25, 2012 Category: Radiology Authors: Steve Suh, Timothy E. Schultheiss Tags: Physics Contributions Source Type: research
We thank Dr. McEvoy and colleagues for their comments on our paper (1). The patients included in this report of the SPARC (Study of Myocardial Perfusion and Coronary Anatomy Imaging Roles in Coronary Artery Disease [CAD]) registry did not have a prior history of CAD and were required to have intermediate to high pretest likelihood of CAD. The SPARC exclusion criteria mandated that patients be clinically stable. Thus, patients with unstable angina (resting chest pain) within 48 h of testing were excluded.
Source: Journal of the American College of Cardiology: Cardiovascular Imaging - July 24, 2012 Category: Radiology Source Type: research
Rhinotillexis: A Possible Heuristic to Reduce Inappropriate Noninvasive Cardiac Imaging?
Hachamovitch et al. (1) presented findings from the prospectively acquired SPARC (Study of Myocardial Perfusion and Coronary Anatomy Imaging Roles in Coronary Artery Disease [CAD]) registry. Enrolled patients had intermediate to high likelihood of CAD and were referred for “clinically indicated” noninvasive cardiac imaging tests. The authors reported data on medication changes as well as referrals for both cardiac catheterization and revascularization at 90 days, based on results of these imaging tests. One of the main findings was a concerning lack of medical therapy optimization and cardiac catheterization referrals ...
Source: Journal of the American College of Cardiology: Cardiovascular Imaging - July 24, 2012 Category: Radiology Source Type: research
Multidetector computed tomography assessment of cardiac comorbidity in patients with chronic obstructive pulmonary disease.
Abstract Cardiac comorbidity is one of the most important prognostic factors in lung disease, especially in chronic obstructive pulmonary disease (COPD). The imaging techniques available for the study of this systemic manifestation concomitant with COPD include heart catheterization, transthoracic echocardiography, and magnetic resonance imaging. Multidetector computed tomography (MDCT) represents a significant advance in this field because it enables the acquisition of simultaneous studies of the cardiopulmonary anatomy that go beyond anatomic and morphologic analysis to include a functional approach to this condi...
Source: Radiologia - July 24, 2012 Category: Radiology Authors: Bastarrika G, Simón-Yarza I, Viteri-Ramírez G, Etxano J, Slon PJ Tags: Radiologia Source Type: research
Gamma oscillations in the human basal ganglia.
Abstract Interest in beta activity in the basal ganglia has mushroomed since it was first identified in the subthalamic nucleus of patients with Parkinson's disease in Jonathan Dostrovsky's landmark paper (Levy et al., 2000). Here we consider a less explored phenomenon; namely gamma frequency synchronisation of neurons in the basal ganglia. Gamma oscillations have been reported in a distributed network involving the basal ganglia, thalamus and motor cortex, and have been described in a wide range of diseases as well as during increased arousal and voluntary movement. In Parkinson's disease, gamma activity is promot...
Source: Experimental Neurology - July 24, 2012 Category: Neurology Authors: Jenkinson N, Kühn AA, Brown P Tags: Exp Neurol Source Type: research
CT fractional flow reserve: the next level in non-invasive cardiac imaging.
Abstract The haemodynamic effect of a coronary artery stenosis is a better predictor of prognosis than anatomical lumen obstruction. Until recently, no individual non-invasive test could provide both accurate coronary anatomy and lesion-specific myocardial ischaemia. However, computer tomography (CT) fractional flow reserve, which can be calculated from a standard CT coronary angiogram, was recently demonstrated to accurately detect and rule out the haemodynamic significance of individual coronary artery stenoses. PMID: 22826175 [PubMed - as supplied by publisher]
Source: Netherlands Heart Journal - July 24, 2012 Category: Cardiology Authors: Meijs MF, Cramer MJ, El Aidi H, Doevendans PA Tags: Neth Heart J Source Type: research
Brief communication: The human humerus from the broken hill mine, kabwe, zambia
AbstractThe distal half of a right human humerus (E.898), recovered ex situ in 1925 by Hrdlička at the Broken Hill Mine, Kabwe, Zambia, has figured prominently in assessments of Middle Pleistocene Homo postcranial variation and of the phylogenetic polarity and functional anatomy of Pleistocene Homo upper limb morphology. Reassessment of distal humeral features that distinguish modern human and some archaic Homo humeri, especially relative olecranon breadth and medial and lateral pillar thicknesses, confirm previous studies placing it morphologically close to recent humans, as well as possibly to Early Pleistocene Homo. Ho...
Source: American Journal of Physical Anthropology - July 24, 2012 Category: Physiology Authors: Erik Trinkaus Tags: Brief Communication Source Type: research
Laryngeal perforation during a standard intubation procedure in a pig
Pigs are frequently anaesthetized in animal research settings. Due to the unique laryngeal anatomy, endotracheal intubation is demanding in pigs. Several complications associated with endotracheal intubation have been reported in pigs, but laryngeal perforation following difficult intubation has not been documented so far. The present case report describes laryngeal perforation in a three-month-old pig following difficult intubation.
Source: Laboratory Animals - July 24, 2012 Category: Research Authors: Steinbacher, R., von Ritgen, S., Moens, Y. P. S. Tags: Short Reports Source Type: research
A middle mesenteric artery
Abstract In 114 cases of the transverse colon isolated from cadavers (50 male, 64 female), anatomical examinations of the arterial system of the colon were performed. Arteriograms were obtained after dissecting and contrasting the colonic vessels with Mixobar contrast. In one case, on arteriography of the colon with its mesentery isolated from a 55-year-old male cadaver, a rare anatomical variant was found. The third mesenteric artery originated directly from the aorta—halfway between the superior and inferior mesenteric arteries and ascended obliquely in the direction of the hepatic flexure of the colon. ...
Source: Surgical and Radiologic Anatomy - July 23, 2012 Category: Anatomy Tags: Surgical and Radiologic Anatomy Source Type: research
Chymostatin as a therapeutic agent of aspergillosis in murine model
Abstract The purpose of this study was to evaluate the therapeutic effect of chymostatin, as an elastase inhibitor, in mice with invasive aspergillosis. Two Aspergillus fumigatus (A. fumigatus) isolates obtained from animals (bovine mastitis and avian endophthalmitis) along with elastase-producing A. fumigatus ATCC 26933 were inoculated to seven mice groups according to the protocol. The induction of aspergillosis was confirmed by tissue cultures as well as histopathological examination. Chymostatin, as an elastase inhibitor, was used in treating the infected animals at doses of 50, 100, and 200 μM in f...
Source: Comparative Clinical Pathology - July 23, 2012 Category: Pathology Tags: Comparative Clinical Pathology Source Type: research
Aortic constriction and the relevance of physiologic research
This article does inform on highly relevant themes, such as ventricle-ventricle interaction, timing of RV remodeling, and the molecular signature of RV profibrotic reactions. It may also open the door to a very untraditional way of managing the remodeled RV. The problem of the hypertrophied yet not decompensated RV is typically solved by an early repair of the anatomy, such as early repair of tetralogy of Fallot for example. No one would consider “banding” the aorta to allow for reverse RV remodeling. What, however, about the thick, fibrotic RV in an older patient with unrepaired pulmonary stenosis? Should we consider,...
Source: The Journal of Thoracic and Cardiovascular Surgery - July 23, 2012 Category: Cardiovascular & Thoracic Surgery Authors: Emile A. Bacha Tags: Commentary Source Type: research
Real-time infrared thermography for ureter detection during hysterectomy
Abstract: Background: Recognition of different anatomic structures might be difficult in the presence of diseases such as neoplasm or endometriosis that can subvert the anatomy. This can be a challenge for young surgeons approaching gynecologic surgery. The aim of the present study was to evaluate the effectiveness of infrared thermocamera to identify the anatomic structures in gynecologic surgery.Materials and methods: From February 2010 to May 2011, consecutive patients who required abdominal hysterectomy were considered for eligibility. During a procedure for benign disease, we evaluated the temperature difference betwe...
Source: Journal of Surgical Research - July 23, 2012 Category: Surgery Authors: Roberto Angioli, Corrado Terranova, Francesco Plotti, Roberto Montera, Patrizio Damiani, Giuseppe Scaletta, Antonio Portuesi, Antonio Bonanni, Luigi Tombolini, Luca Novelli Tags: Bioengineering/Nanomedicine Source Type: research
Normal anatomy by three-dimensional ultrasound in the second and third trimesters
Summary: Fetal brain is rapidly developing and changing its appearance week by week during pregnancy. It is quite difficult to observe detailed structure of the brain by conventional transabdominal sonography. Transvaginal high-resolution ultrasound and three-dimensional (3D) ultrasound have been establishing sonoembryology in the first trimester as well as neurosonography. It is possible to observe the whole brain structure by magnetic resonance imaging in the latter half of pregnancy but transvaginal high-resolution 3D ultrasound is also a powerful modality for understanding brain anatomy. As for brain vascularization, m...
Source: Seminars in Fetal and Neonatal Medicine - July 23, 2012 Category: Perinatology & Neonatology Authors: Ritsuko K. Pooh Source Type: research
The study of the breast by magnetic resonance imaging (MRI) has created greater interest following the possibility of obtaining multiplanar thin slice images with clear delineation of the breast anatomy. The application of MRI in the future study of the breast is mentioned for the first time by Higgins in 1990 in the book Magnetic Resonance of the Body, and since that time, the use of MR in the study of the breast has become a routine examination of the breast. Many books have been written on its technical aspects and diagnostic value, but very often, they are deficient in the number of cases presented and illustrated.
Source: Clinical Imaging - July 23, 2012 Category: Radiology Authors: Manuela La Grassa Tags: Book Reviews Source Type: research
Microvascular reconstruction of the mouth, face and jaws. Oromandibular reconstruction – free fibula flap
We present our experience with the free fibula flap used for oromandibular reconstruction; this was undertaken in 21 patients following resective surgery for malignant pathology, cytologically benign but biologically aggressive odontogenic pathology and radiation induced osteonecrosis. We also review the history, surgical anatomy, surgical assessment and potential complications that are relevant to the free fibula flap.
Source: Australian Dental Journal - July 23, 2012 Category: Dentistry Authors: GR Hoffman, S Islam, RL Eisenberg Tags: CLINICAL REPORT Source Type: research