1. Department of Neurology University Hospital Frankfurt (Goethe University) Frankfurt Germany
2. Department of Diagnostic and Interventional Neuroradiology School of Medicine, Klinikum rechts der Isar, Technical University of Munich (TUM) Munich Germany
3. Clinic of Neurology School of Medicine, Klinikum rechts der Isar, Technical University of Munich (TUM) Munich Germany
4. Brain Imaging Center Goethe University Frankfurt Frankfurt Germany
5. Institute of Neuroradiology University Hospital Frankfurt (Goethe University) Frankfurt Germany
6. Department of Neurology and Neurovascular Center University Hospital Schleswig‐Holstein, Campus Kiel Kiel Germany