1 Center of Portal Hypertension, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, Jiangsu, China.
2 Department of Interventional Radiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
3 Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
4 Center of Portal Hypertension, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, Jiangsu, China. qixiaolong@vip.163.com.