1. Radiology Department, Tianjin Teda Hospital, Tianjin 300457, P.R. China
2. Department of Interventional Treatment, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
3. Medical Imaging Department, Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China