1. State Key Laboratory of Ultrasound Engineering in Medicine Co-founded by Chongqing and the Ministry of Science and Technology, Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, PR China;
2. Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China;
3. The Key Laboratory of Diagnostics Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, PR China;
4. National Engineering Research Center of Ultrasound Medicine, Chongqing, PR China