Seminars in Roentgenology RSS feed: Current Issue. Seminars in Roentgenology is designed primarily for the practicing radiologist and for the resident. Each quarterly issue compiled by a leading guest editor covers a single topic of current importance. The clinical, pathological, and roentgenologic aspects are emphasized, while research and techniques are discussed insofar as they provide documentation and clarification of the subject under discussion. This Seminars series is of interest to radiologists, sonographers, and radiologic technicians. 2010 Topics , Volume 45, Issues 1-4 January Breast Imaging April Musculoskeletal MRI July Neuroimaging: The Essentials October Interstitial Lung Disease http://www.seminarsinroentgenology.com/?rss=yesElsevier Inc.en © 2010 Elsevier Inc. All rights reserved. Seminars in Roentgenology0037-198X454October 2010 © 2010 Elsevier Inc. All rights reserved. healthpermissions@elsevier.comhttp://www.seminarsinroentgenology.com/article/PIIS0037198X10000234/abstract?rss=yesMusculoskeletal pathology is common to any radiology practice and includes trauma, degenerative processes, nerve disorders, and masses, to name a few types. Although radiographic evaluation is the initial imaging method to assess musculoskeletal pathology, the next step in imaging is often magnetic resonance imaging (MRI). The benefits of MRI are numerous, which include evaluation of soft tissues, cartilage, ligaments, and intraosseous structures. With the introduction of intra-articular contrast, detailed depiction of subtle intra-articular anatomy and pathology is possible. Indeed, MRI is considered the standard of care for imaging assessment of many musculoskeletal pathologies. Familiarity with such pathologies is important to provide an accurate imaging diagnosis.Letter From the Guest EditorJon A. Jacobson10.1053/j.ro.2010.05.001Seminars in Roentgenology 45, 4 (2010)2010-10-01Seminars in Roentgenology2010-10-01454S0037-198X(10)X0004-9227227http://www.seminarsinroentgenology.com/article/PIIS0037198X09001023/abstract?rss=yesFemoroacetabular impingement (FAI) is a recently described entity that occurs when there is impaction of the femoral head or neck on the labrum and acetabular rim of the pelvis secondary to either acquired or developmental abnormality of the femoral head and or acetabulum. This abnormal osseous morphology leads to chronic impaction at the extremes of range of motion and subsequent damage of the labrum and articular cartilage. It is critical for the radiologist to have a thorough understanding of this entity because FAI is currently believed to be an important contributor to the early development of osteoarthritis in young patients. However, the natural history of this disorder has not been established, and there is some controversy about the significance of radiologic manifestations of FAI because they can be seen in asymptomatic individuals.Femoroacetabular Impingement: Screening and Definitive ImagingPamela Brian, Stephanie Bernard, Donald Flemming10.1053/j.ro.2009.12.006Seminars in Roentgenology 45, 4 (2010)2010-10-01Seminars in Roentgenology2010-10-01454S0037-198X(10)X0004-9228237http://www.seminarsinroentgenology.com/article/PIIS0037198X09001035/abstract?rss=yesMagnetic resonance imaging (MRI), with its multiplanar capabilities and excellent soft-tissue contrast, has established itself as the leading modality for noninvasive evaluation of the musculoskeletal system. It is regarded as the top imaging and diagnostic tool for the knee joint because of its ability to evaluate a wide range of anatomy and pathology varying from ligamentous injuries to articular cartilage lesions. Imaging of the knee requires excellent contrast, high resolution, and the ability to visualize very small structures, all of which can be provided by MRI. The development of advanced diagnostic MRI tools for the joints is of increased clinical importance as it has been recently shown that musculoskeletal imaging is the most rapidly growing field in MRI, second only to neuroradiology applications.Magnetic Resonance Imaging of the Knee: Optimizing 3 Tesla ImagingLauren Shapiro, Ernesto Staroswiecki, Garry Gold10.1053/j.ro.2009.12.007Seminars in Roentgenology 45, 4 (2010)2010-10-01Seminars in Roentgenology2010-10-01454S0037-198X(10)X0004-9238249http://www.seminarsinroentgenology.com/article/PIIS0037198X09000996/abstract?rss=yesThe ankle joint withstands tremendous pressure, supporting the entire body weight with every step. Unlike the hip and knee, however, the ankle joint uncommonly degenerates. Nature has performed well in designing a joint to withstand fantastic axial pressure, facilitate motion, and resist torsional stress. Despite its ability to resist chronic degenerative change, the ankle is the most commonly injured joint, with 1 million ankle injuries estimated per year by the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Imaging of the acute or chronically injured ankle was historically limited to radiography, in a search for fractures or gross ankle instability. More recently, studies have shown magnetic resonance imaging (MRI) of the ankle to significantly alter clinical care, clarifying or changing preimaging clinical diagnosis, and, in some cases, helping to avoid surgery.Musculotendinous Magnetic Resonance Imaging of the AnkleBrian Petersen, Jeff Fitzgerald, Ken Schreibman10.1053/j.ro.2009.12.003Seminars in Roentgenology 45, 4 (2010)2010-10-01Seminars in Roentgenology2010-10-01454S0037-198X(10)X0004-9250276http://www.seminarsinroentgenology.com/article/PIIS0037198X0900100X/abstract?rss=yesBenign soft-tissue lesions outnumber their malignant counterparts by a factor of 100:1, but many are small and superficial and do not lead to imaging or biopsy. Soft-tissue sarcomas are estimated to represent 1% of malignant tumors. The incidence of soft-tissue sarcoma revealed a rate of 2.7 per 100,000. The incidence of soft-tissue sarcoma increases significantly with age, and in patients 80 and older is 8 per 100,000. Magnetic resonance (MR) imaging (MRI) is the favored modality for evaluation of soft-tissue tumors and tumor-like conditions. It is valuable for lesion detection, diagnosis, and staging. Although advances in thin-section computed tomography (CT) have recently allowed detailed multiplanar reconstructions, MRI allows superior soft-tissue contrast without radiation exposure.Magnetic Resonance Imaging of Soft-Tissue MassesEric A. Walker, Albert J. Song, Mark D. Murphey10.1053/j.ro.2009.12.004Seminars in Roentgenology 45, 4 (2010)2010-10-01Seminars in Roentgenology2010-10-01454S0037-198X(10)X0004-9277297