Spatially filtered magnetoencephalography compared with electrocorticography to identify intrinsically epileptogenic focal cortical dysplasia.

Abstract:

:This study was carried out to evaluate Synthetic Aperture Magnetometry-kurtosis (SAM(g(2))), a spatially filtered source localization technique in magnetoencephalography (MEG), for identification of epileptogenic areas of focal cortical dysplasia (FCD). Three children with FCD were investigated to localize the ictal onset zone (IOZ). All patients subsequently had extraoperative electrocorticography (ECoG) for intractable epilepsy and surgical resection. SAM(g(2)) analysis showed overlapping of interictal MEG spike sources with the IOZ on ECoG in all children. We recommend MEG-SAM(g(2)) and MEG interictal spike source localization in patients with epileptogenic FCD.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Ishii R,Canuet L,Ochi A,Xiang J,Imai K,Chan D,Iwase M,Takeda M,Snead OC 3rd,Otsubo H

doi

10.1016/j.eplepsyres.2008.06.006

subject

Has Abstract

pub_date

2008-10-01 00:00:00

pages

228-32

issue

2-3

eissn

0920-1211

issn

1872-6844

pii

S0920-1211(08)00169-1

journal_volume

81

pub_type

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