1. University Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland
2. University Institute of Diagnostic, Interventional and Pediatric Radiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland
3. Department of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland