1. Department of Obstetrics and Gynecology, 1st Affiliated Hospital of Chongqing Medical University, Chongqing, China;
2. College of Biomedical Engineering, Chongqing Medical University, Chongqing, China;
3. HIFU Center for Tumor Therapy, 1st Affiliated Hospital of Chongqing Medical University, Chongqing, China