title: Visualization of subdural strip and grid electrodes using curvilinear reformatting of 3D MR imaging data sets.
abstract: Curvilinear reformatting of 3D MR imaging data sets was used to visualize the position of subdural strip and grid electrodes relative to the underlying cerebral cortex in patients with epilepsy who were undergoing invasive electroencephalographic recordings. The contour of the cortical surface was delineated interactively, and topographical relationships among surface gyration, cortical lesions, and subdural electrodes were investigated by using serial convex planes parallel to the cortical surface. Electrode contacts could be marked and their positions projected to underlying areas at different depths. This method is apt for routine purposes and allows electrode positions to be displayed with respect to cortical and subcortical regions of interest.
authors.affiliation: Epilepsy Unit, University of Freiburg, Germany.
authors.forename: Andreas H-J
authors.initials: AH
authors.lastname: Schulze-Bonhage
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Huppertz
authors.forename: Roch M
authors.initials: RM
authors.lastname: Comeau
authors.forename: Jürgen B
authors.initials: JB
authors.lastname: Honegger
authors.forename: Joachim M
authors.initials: JM
authors.lastname: Spreer
authors.forename: Josef K
authors.initials: JK
authors.lastname: Zentner
mesh_terms: D000293:Adolescent; D000328:Adult; D001931:Brain Mapping / Q000379:methods*; D002540:Cerebral Cortex / Q000502:physiology* / Q000601:surgery; D004567:Electrodes, Implanted; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology* / Q000601:surgery; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged