1. Department of Ultrasound, General Hospital of Ningxia Medical University, Cardiovascular and Cerebrovascular Disease Hospital, No. 6 Ning'an East Lane, Jinfeng District, Yinchuan, Ningxia, 750000, P. R. China
2. Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Tongji University, No. 301 Yanchangzhong Road, Shanghai, 200072, P. R. China
3. National Center for International Research of Bio-targeting Theranostics, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, Guangxi, 545006, P. R. China