title: Visualization of subdural electrodes with fusion CT scan/MRI during neuronavigation-guided epilepsy surgery.
abstract: Neuronavigation in epilepsy surgery enables surgeons to accurately resect deep targets inside the brain, especially lesions that are unable to be visually differentiated from adjacent normal brain. The usefulness of visualizing subdural electrodes with postimplantation fusion CT/MRI was investigated. The use of platinum subdural electrodes made it possible to obtain postimplantation MRI. The postimplantation MRI and CT scans were fused on the surgical navigation system workstation to form three-dimensional (3D) images, and the epileptogenic regions were marked using the visualized electrodes. Immediately after a craniotomy was performed, the subdural electrodes were removed and the epileptogenic region was successfully resected using the neuronavigation guide. During neuronavigation-guided surgery to target deep brain epileptogenic lesions adjacent to eloquent areas, which are often invisible, we found visualization of the subdural electrodes with postimplantation fusion CT/MRI very useful.
authors.affiliation: Department of Neurosurgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Oita 879 5593, Japan. kamida@med.oita-u.ac.jp
authors.forename: Tohru
authors.initials: T
authors.lastname: Kamida
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Anan
authors.forename: Kazunori
authors.initials: K
authors.lastname: Shimotaka
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Abe
authors.forename: Minoru
authors.initials: M
authors.lastname: Fujiki
authors.forename: Hidenori
authors.initials: H
authors.lastname: Kobayashi
mesh_terms: D000328:Adult; D004567:Electrodes, Implanted; D004827:Epilepsy / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D038361:Neuronavigation / Q000295:instrumentation / Q000379:methods*; D013355:Subdural Space / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods*