aFrom the Departments of Diagnostic and Interventional Neuroradiology (A.M., C.C.K., E.I.P., S.M.P.-P., B.L.S., J.G., T.D., P.M., J.K.), University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland
bDepartment of Diagnostic, Interventional and Pediatric Radiology (C.C.K.), University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland
iGraduate School of Health Sciences (A.M., C.C.K.), University of Bern, Bern, Switzerland
