1. Department of Radiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Badachu Road No.33, Shijingshan District, Beijing 100144 , China
2. Department of Magnetic Resonance Imaging, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College , Beilishi Road No.167, Xicheng District, Beijing 100037 , China