1. Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
2. Department of Radiology, Third Xiangya Hospital, Central South University, Changsha, China
3. School of Public Health, Chongqing Medical University, Chongqing, China
4. Department of Thoracic Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
5. State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China