EEG dipole source localisation of interictal spikes acquired during routine clinical video-EEG monitoring

We investigated the feasibility of electroencephalography (EEG) dipole source localisation of interictal epileptiform discharges from data acquired during routine clinical inpatient video-EEG monitoring (VEM) and compared a 19-channel ‘routine montage’ with a 29-channel ‘surgical montage’ that inclu...

Full description

Saved in:
Bibliographic Details
Published in:Clinical neurophysiology 2004-12, Vol.115 (12), p.2738-2743
Main Authors: Meckes-Ferber, Stefanie, Roten, Annie, Kilpatrick, Christine, O'Brien, Terence J.
Format: Article
Language:English
Subjects:
Adult
Algorithms
Biological and medical sciences
EEG dipole source localisation
Electrode
Electrodiagnosis. Electric activity recording
Electroencephalography - methods
Epilepsy
Epilepsy, Temporal Lobe - diagnosis
Epilepsy, Temporal Lobe - physiopathology
Feasibility Studies
Female
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Middle Aged
Nervous system
Nervous system (semeiology, syndromes)
Neurology
Spike
Temporal Lobe - physiopathology
Video EEG monitoring
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigated the feasibility of electroencephalography (EEG) dipole source localisation of interictal epileptiform discharges from data acquired during routine clinical inpatient video-EEG monitoring (VEM) and compared a 19-channel ‘routine montage’ with a 29-channel ‘surgical montage’ that includes an additional row of 10 inferior temporal electrodes. Twenty consecutive patients who had VEM for the presurgical evaluation of medically refractory partial epilepsy were screened. Thirteen of the patients had focal interictal spikes recorded, and in 11 (85%) these were technically satisfactory for source localisation. Fourteen spike foci were analysed as 3 patients had bilateral independent spikes. EEG data was acquired with 29 electrodes including an inferior temporal row (surgical montage). For comparison, the 10 additional electrodes were excluded from analysis (routine montage). Using NEUROSCAN™ Source 2.0 software, a computed dipole source localisation of averaged spikes was performed utilising a magnetic resonance imaging-based finite element model. Dipole localisation was compared with that of the Comprehensive Epilepsy Program (CEP) evaluation. Using the surgical montage dipole source localisation was consistent with the CEP spike localisation for 13/14 spikes (93%, P
ISSN:1388-2457
1872-8952
DOI:10.1016/j.clinph.2004.06.023