1. School of Medicine, Nankai University, Tianjin, China
2. Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
3. School of Mathematical Sciences, Zhejiang University, Hangzhou, China
4. Department of Medical Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China
5. Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China