MAGNETOENCEPHALOGRAPHIC FEATURES IN NEUROCYSTICERCOSIS

BACKGROUND Magnetoencephatography (MEG) is a method of determining the brain activity noninvasively by detecting the magnetic fields associa ted with neuronal electrical activities. METHODS By using 37-channel D C-superconducting quantum interference devices, MEG activity was recor ded in a patient with neurocysticercosis, who had a long-term history of epilepsy. RESULTS MEG clearly demonstrated accumulation of current dipoles originating from high-frequency waves around the cysticercal c yst, while scalp electroencephalogram failed to reveal paroxysmal disc harge. Intraoperative electrocorticography revealed multiple spike act ivities around the lesion, consistent with MEG findings. CONCLUSIONS W e discussed the application of MEG to the patients with neurocysticerc osis in estimating epileptogenic sources.