1. From the Department of Neuroradiology (L.R., L.Ø., C.Z.S., P.V.-P., C.G.) and the Department of Neurology (G.A.), Aarhus University Hospital, Aarhus, Denmark; the Department of Neurosurgery (M.S.), University of Ehime, Ehime, Japan; and SHFJ (D.L.B.), CEA, Orsay, France.