1. From the Departments of Radiology (M.L., P.H., J.C., J.H., W.L.) and Urology (H.J.), Xiangya Hospital, Central South University, National Clinical Research Center for Geriatric Disorders, 410008 Changsha, Hunan Province, China; and Department of Radiology, Charité–Universitätsmedizin Berlin, Berlin, Germany (J.G., P.A., I.S.).