1. Department of Cardiac Surgery, University Hospital Münster, Albert-Schweitzer Campus 1, 48149 Muenster, Germany
2. Department of Nuclear Medicine, University Hospital, Albert-Schweitzer Campus 1, Münster 48148, Germany
3. Cliniques Universitaires Saint-Luc, Universite’ Catholique du Louvain, Bruxelles, Avenue Hippocrate 10, 1200 Woluwe-Saint-Lambert, Belgium
4. Department of Nuclear Medicine, Bonifatius Hospital Lingen, Wilhelmstraße 1349808 Lingen (Ems), Germany