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, Interdisciplinary Center for Clinical Research (IZKF Münster), Domagkstr. 3, University of Münster, 48149 Münster, Germany, and European Institute for Molecular Imaging (EIMI), University of Münster, Mendelstr. 11, 48149 Münster, Germany