From the Department of Clinical Neurosciences, Calgary Stroke Program (O.V., C.Z., M.N., A.M.D., B.K.M., M.D.H.), and Department of Community Health Sciences (C.Z., B.K.M., M.D.H.), Cumming School of Medicine, University of Calgary, Canada; International Clinical Research Centre, Stroke Research Program & Department of Neurology (O.V., P.C., R.M.), and Department of Medical Imaging (P.C.), St. Anne's University Hospital; Faculty of Medicine (O.V., P.C., R.M.), Masaryk University, Brno; Department of Neurology (O.V.), Faculty Hospital Ostrava; 2nd Medical Faculty (A.T.) and First Faculty of Medicine and General University Hospital (J.F.), Department of Neurology, Charles University, Prague; Department of Neurology, Faculty of Medicine (M.B.), University Hospital Ostrava, University Ostrava; Department of Radiology, 2nd Faculty of Medicine (M.R., R.P.), Charles University in Prague and Motol University Hospital; Department of Radiology (F.C.) and Department of Neurology-Comprehensive Stroke Center (D.C.), Masaryk Hospital, Usti nad Labem; Department of Neurology (M.N.), Hospital Ceske Budejovice; Neurocenter (L.J.), Regional Hospital Liberec; Department of Neurology (R.H.), Military University Hospital, Prague; Department of Neurology (M.K.), Na Homolce Hospital, Prague; Department of Neurology, Faculty of Medicine in Pilsen (P.S., V.R.), Charles University in Prague, Pilsen; Department of Neurology (R.J.), University Hospital Brno and Faculty of Medicine Masaryk University; Department of Neurology (D.V.), AGEL Research and Training Institute, Ostrava Vitkovice Hospital, Czech Republic; Institute of Diagnostic Imaging (IDI)-Research Unit (IDIR) (J.P.), Parc Sanitari Pere Virgili, Barcelona; Girona Biomedical Research Institute (IDIBGI)-Medical Imaging (J.P.), Hospital Universitari de Girona Dr. Josep Trueta, Girona, Spain; Department of Clinical Neurosciences (D.P.), University of Western Ontario; Lawson Health Research Institute and Robarts Research Institute (A.V.K.), London, Canada; and Department of Experimental and Clinical Biomedical Sciences "Mario Serio" (E.F.), University of Florence, Italy.