1. Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany;
2. Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Section of Pediatric Radiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany;
3. Catholic Marienkrankenhaus GmbH, Institute of Diagnostic and Interventional Radiology, Hamburg, Germany