1. Department of Sports Medicine, Institute of Sports Medicine of Peking University, Peking University Third Hospital, Beijing 100191, China
2. Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
3. Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
4. Department of Ultrasound, Peking University Third Hospital, Beijing 100191, China
5. Department of Radiology, Peking University Third Hospital, Beijing 100191, China