1. Department of Cardiothoracic Surgery, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil, Bochum, Nordrhein-Westfalen, Germany
2. Institute for Radiologic Diagnostics, Interventional Radiology and Nuclear Medicine, Berufsgenossenschaftliches Universitatsklinikum Bergmannsheil, Bochum, Nordrhein-Westfalen, Germany
3. Institute for Diagnostic and Interventional Radiology and Nuclear Medicine, Marien Hospital Herne, Academic Teaching Hospital of the University Bochum, Herne, Nordrhein-Westfalen, Germany
4. Department of Urology and Neuro-Urology, Marien Hospital Herne Academic Teaching Hospital of the University Bochum, Herne, Nordrhein-Westfalen, Germany