Abstracts S83 moved a centimeter out of alignment, then it is possible to assume that the whole will no longer function as it was designed to do. We could then equate this to human movement. Unlike a machine, we do have the ability to bend and mould to different shapes and return to our original form. But if this does not occur due to injury, degeneration or disease process, then it is probable to assume that normal function will not occur. could be studied. In patients, a mean of 6.4⫾0.8 ligaments could be assessed. The ligaments were appreciated as inhomogeneous and decreased in echogenicity. Ligaments of patients were significantly decreased in thickness compared to those of volunteers (p⬍0.001). Conclusions: HRUS provides good anatomical detail of the extrinsic carpal ligaments. In rheumatoid patients, the appearance of carpal ligaments could be related to the degree of activity of their affection. 0616 0618 Musculoskeletal Ultrasound and the Athlete - A Review of Sports Specific Injuries Andrew Wilmot, Dr Jones and Partners, Australia Value of US in Diagnosing Bony Erosoins Comparing to X-Ray Jila Nadjafi, NHS, United Kingdom Anahita Amirpoor, Shaheed Beheshti Medical Science University, Iran Farivar Abdolahzadeh lahiji, Shaheed Beheshti Medical Science University, Iran Ultrasound has a role to play in the diagnosis of many musculoskeletal injuries. This presentation will discuss some of the common pathologies found in both amateur and professional sports people who have presented for an ultrasound examination at our MSK Specialist Imaging Centre. The sportsperson is an interesting patient. As an amateur, professional or somewhere in between they all want to be injury free so that they can train or play at their peak. When they attend for an ultrasound it probably means that they have some symptoms that are interfering with their training or playing regime. Their pain is usually related to the repetitive sporting action that they perform and is often localised to one specific muscle group or tendon area. Ultrasound can accurately diagnose or in some situations can help guide an injection into any injury found, or, will give a clean bill of health which can let them resume full training. A variety of the athletes who attended our clinic and the sports they play will be correlated against the interesting and sports specific pathology that has been found in our sample of athletes. 0617 High Resolution Ultrasound (HRUS) of Carpal Ligaments in Rheumatoid Athritis: Preliminary Experience Luca M Sconfienza, IRCCS Policlinico San Donato, San Donato Milanese, Italy Francesco Paparo, Department of Internal Medicine, University of Genova, Italy Edoardo Savarino, Department of Internal Medicine, University of Genova, Italy Stefano Longo, Laboratory of Sport Analysis, University of Milano, Italy Enzo Silvestri, Ospedale Evangelico Internazionale, Genova, Italy Marco A Cimmino, Department of Internal Medicine, University of Genova, Italy Purpose: The appearance of carpal ligaments in patient affected by rheumatoid arthritis has not been yet described. Our purpose is to describe the sonographic appearance of extrinsic carpal ligaments on HRUS in patients affected by rheumatoid arthritis compared to healthy volunteers. Materials and Methods: We studied both wrists in 9 patients affected by rheumatoid arthritis with different grades of activity (3 males, 9 females, 18 wrists, mean age 57⫾14.6) and 9 healthy volunteers (5 men, 4 women, 18 wrists, mean age 54⫾12.1 years) with an ATL HDI 5000 scanner equipped with a high-resolution linear-array broadband transducer (5–12 MHz). Both patients and volunteers reported no previous relevant wrist trauma. The scans were performed along the long axis of the extrinsic dorsal and ventral ligaments to assess their course, thickness and structure. Results: In all volunteers, the ligaments could be appreciated as thin fibrillar hyperechoic structures. The course of seven extrinsic carpal ligaments and their relationships with surrounding articular structures Background: Periarticular bony erosions are common in chronic cases. This study was designed to evaluate the accuracy of Ultrasound in diagnosing periarticular bony erosions compared to plain X-Ray films. Material and Methods: The study was designed as a clinical trail descriptive study.15 patients with chronic AR that were clinically suspicious for having periarticular bony erosions were examined by PA X-ray of hand and subsequently had Ultrasound. The US machine used was Volosun GE and 13 MhZ linear probe was used. The study was double blinded and the radiologist performing the Ultrasound was not aware of X-Ray findings and the Rheumatologist was unaware of US findings. Results: From 15 patents 420 small joints were examined from which 42 joints were excluded as the films were not available due to error in filing .132 metacarpophalyngeal, 120 proximal interphalyngeal and 126 distal phalyngeal joints were examined. In metacarpophalengeal joints 67 erosion was diagnosed by ultrasound and 72 by x-Ray. Bony erosion was diagnosed in 44 proximal interphalengeal joints by ultrasound and 36 on X-ray. No erosion was seen in distal interphalengeal joints by either method. The sensitivity and specificity of ultrasound for metacarpophalengeal joints was 73% and 80%, for proximal interphalengeal 75% and 82% respectively. Conclusion: The sensitivity and specificity of Ultrasound in diagnosing erosion of small joints was 74% and 88% respectively. With accuracy of 75 % for metacarpophalyngeal joints and 80% for interphalyngeal joints’ erosion ultrasound proved to be accurate and simple method for diagnosing periarticular bony erosions of Ruomatoid Arthritis. 0620 Breast Ultrasound of DCIS. Correlation with Mammography, MRI and Pathology Woo Kyung Moon, Seoul National University Hospital, Korea Ultrasound(US) performed with a 10-13-MHz transducer and optimal technique can be used as a complement to mammography in detecting and evaluating DCIS of the breast. There are several circumstances in which US may be of benefit in the evaluation of patients with DCIS. First, US can be used to visualize large-size (over 10 mm) clusters of microcalcifications with a high suspicion of malignancy (estimated likelihood of malignancy 75% or higher, using mammographic assessment criteria). The main benefit of identifying a sonographic abnormality in women with mammographically detected microcalcifications is to allow the use of US to guide interventional procedures, such as needle biopsy and needle localization. US-guided procedures are less expensive and faster than stereotactically-guided procedures. In addition, for those institutions that do not have stereotactic equipment, the use of US in selected cases would extend the role of precutaneous biopsy at these sites. US may also be used as a guide to biopsy the