Document Detail

Complementary use of video-electroencephalography and magnetoencephalography in frontal lobe epilepsy.
MedLine Citation:
PMID:  22578278     Owner:  NLM     Status:  MEDLINE    
PURPOSE: The aim of this study was to compare magnetoencephalography (MEG) and video-electroencephalography (VEEG) source localization in frontal lobe epilepsy (FLE) and determine if these methods can be complementary to each other in clinical practice.
METHOD: Thirty patients with pharmaco-resistant FLE who underwent epilepsy surgery were retrospectively enrolled. Video EEG was recorded using an IT-med system using 10/20 system. Regional localization of spikes in VEEG was defined as spikes discharged from adjacent electrodes and no further propagation to a large and/or contralateral area. Magnetoencephalography was recorded for the purpose of focus assessment. Magnetoencephalography spikes were detected for dipole localization of the epileptogenic cortex and the epileptogenic area was classified as mono- or multi-focal.
RESULTS: Regional spike discharges were identified in the interictal VEEG of 20 patients and in the ictal VEEG of 17 patients. Thirteen patients had regional spikes in both interictal and ictal VEEG. Mono-focal localization was identified in the MEG of 20 patients. Fourteen of these patients had regional spike discharges in VEEG. In the remaining six patients, sources localization was only identified by MEG and there were no regional spike discharges either interictal or ictal VEEG.
CONCLUSION: In clinical practice, VEEG is the routine procedure in the presurgical evaluation of FLE. However, we found six cases in which VEEG failed to locate the epileptogenic area that was identified by MEG. We therefore propose that combining VEEG and MEG will optimize the noninvasive presurgical evaluation of epileptiform activities in FLE.
Xin-Tong Wu; Stefan Rampp; Rüdiger Hopfengärtner; Michael Buchfelder; Dong Zhou; Hermann Stefan
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-05-10
Journal Detail:
Title:  Seizure     Volume:  21     ISSN:  1532-2688     ISO Abbreviation:  Seizure     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-15     Completed Date:  2012-10-15     Revised Date:  2014-10-21    
Medline Journal Info:
Nlm Unique ID:  9306979     Medline TA:  Seizure     Country:  England    
Other Details:
Languages:  eng     Pagination:  426-30     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved.
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MeSH Terms
Electroencephalography / methods*
Epilepsy, Frontal Lobe / diagnosis*
Magnetoencephalography / methods*
Middle Aged
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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