1. Department of Ultrasound Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 31000, P. R. China
2. Department of Ultrasound Medicine, Affiliated Jinhua Hospital Zhejiang University School of Medicine, Jinhua, Zhejiang, 321000, China
3. Zhejiang University Cancer Center, Zhejiang, Hangzhou, China