Affiliation: | (1) Department of Radiology, Karl-Franzens Medical School and University Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria Tel.: + 43-316-385 3850 Fax: + 43-316-385 3848, AT;(2) Department of Neurosurgery, Karl-Franzens Medical School and University Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria, AT |