title: Functional magnetic resonance imaging-controlled neuronavigator-guided brain surgery: a case report.
abstract: The effectiveness of functional magnetic resonance imaging (f-MRI)-controlled and navigator-guided brain surgery for a patient with a recurrent astrocytoma is demonstrated. Preoperative f-MRI was performed in order to identify the motor area and ensure that the tumour was in the left prefrontal area. A more aggressive operation was planned for the recurrent tumour. The f-MRI data were input to the MKM navigation system and during the operation the contours of the tumour and motor area were visualised b y the microscope of the navigation system. The tumour and surrounding gliotic brain tissue were removed completely. The diagnosis was a grade III astrocytoma. The combination of the navigation system and f-MRI was useful for preoperative design of the surgical strategy, and tumour orientation during the operation, enabling aggressive surgery to be performed without functional deficits ensuing.
authors.affiliation: Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan. nishi-ygc@umin.u-tokyo.ac.jp
authors.forename: J
authors.initials: J
authors.lastname: Morioka
authors.forename: T
authors.initials: T
authors.lastname: Nishizaki
authors.forename: T
authors.initials: T
authors.lastname: Tokumaru
authors.forename: S
authors.initials: S
authors.lastname: Uesugi
authors.forename: K
authors.initials: K
authors.lastname: Yamashita
authors.forename: H
authors.initials: H
authors.lastname: Ito
authors.forename: M
authors.initials: M
authors.lastname: Suzuki
mesh_terms: D000328:Adult; D001254:Astrocytoma / Q000473:pathology / Q000601:surgery*; D001932:Brain Neoplasms / Q000473:pathology / Q000601:surgery*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D019635:Neurosurgical Procedures / Q000379:methods; D013813:Therapy, Computer-Assisted / Q000379:methods*