Affiliation: | 1. Department of Ultrasound, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, ChinaChengzhong Peng and Zhengxian Zhang contributed equally to this work.;2. Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania;3. Department of Nephrology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China;4. Department of Ultrasound, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China |