title: Comparison of CT- versus MRI-guided, computer-assisted depth electrode implantation.
abstract: Fourteen candidates for ablative seizure surgery underwent CT-guided, computer-assisted stereotactic depth electrode implantation and 21 underwent MRI-guided, computer-assisted implantation. A hand-held computer with no graphic capability was used for CT-guided procedures. A computer work station which included a high-resolution color graphics terminal with touchscreen interfacing and software capable of simulating targets and trajectories in single or multiple views was used for MRI-guided procedures. Previous phantom studies done with a 1.5-tesla MR scanner suggested acceptable localization error. Localizing information was obtained in 10 (71.4%) of 14 of the CT-guided implants and in 16 (76.2%) of 21 of MRI-guided cases. In the CT group, 7 (70%) were seizure-free and 8 (80%) were greater than 90% improved at 1 year follow-up. In the MRI group, 8 (80%) were seizure-free and 9 (90%) were greater than 90% improved at latest follow-up.
authors.affiliation: Section of Neurosurgery, Medical College of Georgia, Augusta.
authors.forename: J R
authors.initials: JR
authors.lastname: Smith
authors.forename: T L
authors.initials: TL
authors.lastname: Hardy
authors.forename: D F
authors.initials: DF
authors.lastname: Rose
authors.forename: H F
authors.initials: HF
authors.lastname: Flanigin
authors.forename: D W
authors.initials: DW
authors.lastname: King
authors.forename: B B
authors.initials: BB
authors.lastname: Gallagher
authors.forename: A M
authors.initials: AM
authors.lastname: Murro
authors.forename: A
authors.initials: A
authors.lastname: Fifer
mesh_terms: D003196:Computer Graphics; D004827:Epilepsy / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D015225:Magnetoencephalography; D012189:Retrospective Studies; D013238:Stereotaxic Techniques; D013702:Temporal Lobe / Q000033:anatomy & histology / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods*