1. Department of Radiology, University Hospital Giessen and Marburg, Gießen
2. Department of Thoracic and Cardiovascular Surgery, Saarland University, Homburg, Germany
3. Department of Pathology, Saarland University, Homburg, Germany
4. Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN
5. Department of Radiology, BGU Clinic, Frankfurt/Main, Germany