1. Division of Interventional Ultrasound, Department of Medical Ultrasound, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China;
2. Department of Interventional Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China;
3. Department of Liver Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China