Noninvasive Preoperative Cortical Localization
نویسندگان
چکیده
Localization of cortical activity is important in surgical planning for the approach and treatment of neoplasms, vascular malformations, and epilepsy (1). At present direct physiologic assessment (using intraoperative stimulation or recording techniques) is necessary to accurately identify cortical function because direct visual anatomical identification may be inaccurate (1-4). The accuracy of electrical (EEG) and magnetic (magnetoencephalography (MEG)) recordings in the preoperative localization of the hand sensorimotor cortex has been compared to intracerebral recordings in patients with complex partial seizures (1). We report the success of magnetic source imaging (MSI) using the combined techniques of MEG and magnetic resonance (MR) in the noninvasive preoperative localization of the hand sensorimotor cortex for surgical guidance in two cases.
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