Targeted density electrode placement achieves high concordance with traditional high-density EEG for electrical source imaging in epilepsy.

ESI Foci Montage Presurgical Spike

Journal

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
ISSN: 1872-8952
Titre abrégé: Clin Neurophysiol
Pays: Netherlands
ID NLM: 100883319

Informations de publication

Date de publication:
Dec 2023
Historique:
received: 10 05 2023
revised: 27 07 2023
accepted: 12 08 2023
pubmed: 14 9 2023
medline: 14 9 2023
entrez: 13 9 2023
Statut: ppublish

Résumé

High-density (HD) electroencephalography (EEG) is increasingly used in presurgical epilepsy evaluation, but it is demanding in time and resources. To overcome these issues, we compared EEG source imaging (ESI) solutions with a targeted density and HD-EEG montage. HD-EEGs from patients undergoing presurgical evaluation were analyzed. A low-density recording was created by selecting the 25 electrodes of a standard montage from the 83 electrodes of the HD-EEG and adding 8-11 electrodes around the electrode with the highest amplitude interictal epileptiform discharges. The ESI solution from this "targeted" montage was compared to that from the HD-EEG using the distance between peak vertices, sublobar concordance and a qualitative similarity measure. Fifty-eight foci of forty-three patients were included. The median distance between the peak vertices of the two montages was 13.2 mm, irrespective of focus' location. Tangential generators (n = 5/58) showed a higher distance than radial generators (p = 0.04). We found sublobar concordance in 54/58 of the foci (93%). Map similarity, assessed by an epileptologist, had a median score of 4/5. ESI solutions obtained from a targeted density montage show high concordance with those calculated from HD-EEG. Requiring significantly fewer electrodes, targeted density EEG allows obtaining similar ESI solutions as traditional HD-EEG montage.

Identifiants

DOI: 10.1016/j.clinph.2023.08.009 PMID: 37704552
pubmed: 37704552
pii: S1388-2457(23)00706-X
doi: 10.1016/j.clinph.2023.08.009
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

262-271

Informations de copyright

Copyright © 2023 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.

Auteurs

A Horrillo-Maysonnial (A)

Clinical Neurophysiology Section, Clínica Universidad de Navarra, Pamplona, Spain; IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain; Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada.

T Avigdor (T)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Multimodal Functional Imaging Lab, Biomedical Engineering Department, McGill University, Canada. Electronic address: tamir.avigdor@mail.mcgill.ca.

C Abdallah (C)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Multimodal Functional Imaging Lab, Biomedical Engineering Department, McGill University, Canada. Electronic address: chifaou.abdallah@mail.mcgill.ca.

D Mansilla (D)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: daniel.mansilla@mail.mcgill.ca.

J Thomas (J)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: john.thomas3@mail.mcgill.ca.

N von Ellenrieder (N)

Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: nicolas.vonellenrieder@mcgill.ca.

J Royer (J)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Multimodal Imaging and Connectome Analysis Laboratory, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: jessica.royer@mail.mcgill.ca.

B Bernhardt (B)

Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Multimodal Imaging and Connectome Analysis Laboratory, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: boris.bernhardt@mcgill.ca.

C Grova (C)

Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Multimodal Functional Imaging Lab, Biomedical Engineering Department, McGill University, Canada; Multimodal Functional Imaging Lab, PERFORM Center, Department of Physics, Concordia University, Montreal, QC, Canada. Electronic address: christophe.grova@mcgill.ca.

J Gotman (J)

Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada. Electronic address: jean.gotman@mcgill.ca.

B Frauscher (B)

Analytical Neurophysiology Lab, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada; Department of Neurology, Duke University Medical Center, Durham, NC, United States; Department of Biomedical Engineering, Duke Pratt School of Engineering, Durham, NC, United States. Electronic address: birgit.frauscher@duke.edu.

Classifications MeSH