1. Department of Neuroradiology, Medical Centre-University of Freiburg, Germany
2. Department of Radiology, University Medical Centre Basel, Switzerland
3. Faculty of Medicine, University of Freiburg, Germany
4. Medical Physics, Department of Radiology, Medical Centre-University of Freiburg, Germany
5. Department of Neurosurgery, Medical Centre-University of Freiburg, Germany
6. Department of Functional and Stereotactic Neurosurgery, Medical Centre-University of Freiburg, Germany
7. Institute of Neuropathology, Medical Centre-University of Freiburg, Germany