1. From the Departments of Radiology (P.J.H., S.R., M.J.v.G., Q.J.A.v.d.B., A.v.d.L.), Epidemiology (Q.J.A.v.d.B.), Medical Informatics (W.J.N.), and Neurology (D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands; and Faculty of Applied Sciences (W.J.N.), Delft University of Technology, Delft, The Netherlands.