1. Fraunhofer MEVIS, Universitaetsallee 29, 28357 Bremen, GermanybUniversity of Leipzig, Innovation Center Computer Assisted Surgery, Semmelweisstraße 14, 04103 Leipzig, Germany
2. Fraunhofer MEVIS, Universitaetsallee 29, 28357 Bremen, Germany
3. Philipps-University Marburg, Department of Diagnostic Radiology, Baldingerstrasse, 35043 Marburg, Germany
4. University Hospital of Munich, Department of Clinical Radiology, Marchioninistrasse 15, 81377 Munich, Germany
5. University Hospital Mainz, Department of Diagnostic and Interventional Radiology, Langenbeckstrasse 1, 55131 Mainz, Germany