1. Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, 60590 Frankfurt, Germany
2. Division of Experimental Imaging, Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, 60590 Frankfurt, Germany
3. Department of Diagnostic and Interventional Radiology, Bundeswehrzentralkrankenhaus Koblenz, 56072 Koblenz, Germany
4. Department of Diagnostic and Interventional Radiology, University Hospital Mainz, 55131 Mainz, Germany
5. Department of Diagnostic and Interventional Radiology, University Hospital Mannheim, 68167 Mannheim, Germany
6. Diagnostic and Interventional Radiology Unit, Department of Biomedical Sciences and Morphological and Functional Imaging, “G. Martino” University Hospital Messina, 98124 Messina, Italy