1. From the Departments of Radiology (E.J.R.J.v.d.H., J.A.V.) and Neurology (W.J.S.), Sint Antonius Hospital, Nieuwegein, the Netherlands; and Department of Radiology, Brain Center Rudolf Magnus (J.W.D., J.M.N., T.v.S., I.C.v.d.S., B.K.V.), Department Neurology and Neurosurgery (L.J.K., A.A.), and Julius Center for Health Sciences and Primary Care (A.A.), University Medical Center Utrecht, Utrecht, the Netherlands.