1. Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
2. Department of Gynecology, Shanghai Xinhua Harvard Medical Center, Shanghai, China
3. Department of MRI, Shanghai First Maternity and Infant Hospital, Tongji University Scholl of Medicine, Shanghai, China
4. State Key Laboratory of Ultrasound Engineering in Medicine Co-founded by Chongqing and the Ministry of Science and Technology, Chongqing Key Laboratory of Ultrasoundin Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China