1. Department of Radiology; Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University; Chengdu Sichuan P.R. China
2. Department of Radiology; West China Hospital, Sichuan University; Chengdu Sichuan P.R. China
3. Department of Cardiovascular Surgery; West China Hospital, Sichuan University; Chengdu Sichuan P.R. China