1. Department
of Ultrasound in Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, PR China
2. State
Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
3. Department
of Ultrasound, Hainan General Hospital, Haikou 570311, PR China
4. Department
of Radiology, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
5. Second
Affiliated Hospital, Institute of Ultrasound Imaging, Chongqing Medical University, Chongqing 400010, PR China