1. Department of Nuclear Medicine, University Hospital Münster, Albert-Schweitzer-Strasse 33, D-48149 Münster, Germany
2. European Institute for Molecular Imaging, University of Münster, Mendelstrasse 11, D-48149 Münster, Germany
3. Interdisciplinary Centre of Clinical Research (IZKF), Münster, Germany
4. Department of Clinical Radiology, University Hospital Münster, Albert-Schweitzer-Strasse 33, D-48149 Münster, Germany