1. Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.

2. Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Department of Radiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.

3. Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Department of Diagnostic and Interventional Radiology, Cairo University Hospital, Cairo, Egypt.

4. Medical Clinic I, “Fuerth’’ Hospital, University of Erlangen, Fuerth, Germany

5. Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt am Main, Frankfurt am Main, Germany; Institute of Diagnostic Radiology, Department of Biological and Medical Sciences, University of Udine, Udine, Italy.