1. From the Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str 22, Munich 81675, Germany (M.T.L., A. Sekuboyina, A.J., A.L.G., A. Scharr, M.E.H., M.K., C.Z., T.B., J.S.K.); and Department of Informatics, Technical University of Munich, Munich, Germany (A. Sekuboyina).