1. Department of Simulation and Graphics; Otto-von-Guericke University; Magdeburg Germany
2. Division of Surgical Research; University of Zürich; Switzerland
3. Department of Image Guided Therapy Systems; Philips Healthcare, Best, The Netherlands & Yacht; Eindhoven The Netherlands
4. Cardiovascular Research and Development; Fraunhofer MeVis; Bremen Germany
5. Department of Diagnostic Radiology; Municipal Hospital; Magdeburg Germany