1. Department of Radiology, Neuroradiology, and Nuclear Medicine; University of Bern; Bern Switzerland
2. Department of Clinical Research; University of Bern; Bern Switzerland
3. Graduate School for Cellular and Biomedical Sciences; University of Bern; Bern Switzerland
4. Institute for Biomedical Engineering, UZH and ETH Zurich; Zurich Switzerland
5. Max Planck Institute for Biological Cybernetics; Tübingen Germany