Noninvasive cortical imaging of epileptiform activities from interictal spikes in pediatric patients.

NeuroImage
Yuan LaiBin He

Abstract

Improved non-invasive localization of the epileptogenic foci prior to epilepsy surgery would improve surgical outcome in patients with partial seizure disorders. A critical component for the identification of the epileptogenic brain is the analysis of electrophysiological data obtained during ictal activity from prolonged intracranial recordings. The development of a noninvasive means to identify the seizure onset zone (SOZ) would thus play an important role in treating patients with intractable epilepsy. In the present study, we have investigated non-invasive imaging of epileptiform activity in patients with medically intractable epilepsy by means of a cortical potential imaging (CPI) technique. Eight pediatric patients (1M/7F, ages 4-14 years) with intractable partial epilepsy were studied. Each patient had multiple (6 to 14) interictal spikes (IIS) subjected to the CPI analysis. Realistic geometry boundary element head models were built using each individual's MRI in order to maximize the imaging precision. CPI analysis was performed on the IISs, and extrema in the estimated CPI images were compared with SOZs as determined from the ictal electrocorticogram (ECoG) recordings, as well as the resected areas in the patients and ...Continue Reading

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Citations

Mar 31, 2012·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Jinxian YuanEdouard Hirsch
May 27, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Clara Huishi ZhangBin He
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Dec 17, 2011·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Yunfeng LuBin He
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