[1] College of Electronic Information, Sichuan University, Sichuan, Chengdu,610000, China
[2] Information Center/Engineering Research Center of Medical Information Technology, Ministry of Education, West China Hospital of Sichuan University, Sichuan, Chengdu,610000, China
[3] Ultrasound Medicine Department, West China Hospital of Sichuan University, Sichuan, Chengdu,610000, China
[4] Department of Information Management, West China Tianfu Hospital, Sichuan University, Sichuan, Chengdu,610000, China