Imaging Diagnosis of Sports Injury Young Cheol Yoon Department of Radiology, Samsung medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. ycyoon@skku.edu Abstract Increased number of population participating in sports results in unavoidably increase of incidence of sports injury. It also causes a rise of total healthcare expenditure. Because the technology of a variety of imaging modalities and treatment for sports injury is rapidly developed, an up-to-date knowledge on technology is critical for the sports physician. Advances in areas of nuclear medicine, magnetic resonance imaging, ultrasonography, and multi-detector computed tomography, provides a variety of options to physician in the process of patient evaluation. Therefore, they should be aware of strength, limitation, indications, contraindications, and diagnostic accuracy of diagnostic tools. Key Words: Sports medicine, Radiology, Magnetic resonance imaging, Computed tomography, Ultrasound