Accuracy and availability of the computed assisted neurosurgery navigation system during epilepsy surgery.
The magnetic-force-based Computed Assisted Neurosurgery System was used for epilepsy surgery to localize targets accurately in the operative field. The correlation between X components of target coordinates in the axial plane and the coronal plane for the same target was strong in all cases. Concerning Y components, there were statistically significant differences in 2 cases. There was a case that showed statistically significant differences only in the Z dimension. The interdisk distance by data sets of coordinates obtained from neuronavigation was calculated to quantify localization error, and the measuring error ranged from -5 to 13.3 mm (1.3 +/- 3.2 mm). The magnitude of the application errors in this study tended to be large in the frontal and vertex regions.
Hirabayashi
H
H
Department of Neurosurgery, Nara Medical University, Kashihara, Japan. hidehiro@nmu-gw.naramedac.jp
Chitoku
S
S
Hoshida
T
T
Sakaki
T
T
D000293:Adolescent; D000328:Adult; D000703:Analog-Digital Conversion; D016288:Computer Terminals; D004567:Electrodes, Implanted; D004827:Epilepsy / Q000473:pathology / Q000601:surgery*; D004867:Equipment Design; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D008280:Magnetics; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000295:instrumentation* / Q000379:methods