1. From the Departments of Radiology (T.A., T.D.Z., L.G., W.J., F.A.) and Urology (R.P.), Medical University of Innsbruck, Innsbruck, Austria; Department of Radiology, Landeskrankenhaus Hall, Tirol, Austria (T.A.); Department of Radiology, Brixsana Private Clinic, Brixen, Italy (T.D.Z.); Department of Rheumatology, Medical University Graz, Graz, Austria (C.D.); and Department of Radiology, University of Rochester School of Medicine & Dentistry, Rochester, NY (V.S.D.).