1. Institute for Diagnostic and Interventional Radiology, Frankfurt University Hospital, Frankfurt/Main, Germany

2. Department of Radiology, Union Hospital, Huazhong University of Science and Technology, Wuhan, PR China

3. Department of Visceral Surgery, Frankfurt University Hospital, Frankfurt/Main, Germany

4. Institute for Diagnostic and Interventional Radiology, Frankfurt University Hospital, Frankfurt/Main, Germany; Department of Radiology, Alexandria University School of Medicine, Alexandria, Egypt

5. Institute for Diagnostic and Interventional, Radiology Frankfurt University Hospital, Frankfurt/Main, Germany; Department of Radiology, Cairo University School of Medicine, Cairo, Egypt