1. Department of Clinical Radiology, Albert-Schweitzer-Strasse 33, University Hospital Münster, 48149 Münster, Germany, Department of Nuclear Medicine, Albert-Schweitzer-Strasse 33, University Hospital Münster, 48149 Münster, Germany, and Interdisciplinary Center for Clinical Research (IZKF Münster), Domagkstrasse 3, University of Münster, 48149 Münster, Germany