1 Department of Neurology, Donders Center for Medical Neurosciences, Radboud University Medical Center, Nijmegen, The Netherlands.
2 Stroke Center and Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland.
3 University Center for Medicine of Aging, Felix Platter Hospital, Basel, Switzerland.
4 Stroke Center, Klinik Hirslanden, Zürich, Switzerland.
5 Medical Image Analysis Center (MIAC AG) and Quantitative Biomedical Imaging Group (qbig), Department of Biomedical Engineering, University of Basel, Basel, Switzerland.
6 Neurologic Clinic and Policlinic, Department of Medicine, Biomedicine and Clinical Research, University Hospital Basel, University of Basel, Switzerland.