Display of the epileptogenic zone on the frontal cortical surface using dynamic voltage topography of ictal electrocorticographic discharges

Fumiaki Yoshida, T. Morioka, Kimiaki Hashiguchi, Y. Miyagi, S. Nagata, M. Ohshio, T. Sasaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To evaluate the usefulness of computerized brain-surface dynamic voltage topography (DVT) of ictal electrocorticographic (ECoG) discharges to localize and identify epileptogenic areas, 3 patients with intractable frontal lobe epilepsy who underwent epilepsy surgery after chronic subdural electrode recording were assessed. Cortical surfaces and subdural electrodes were photographed during initial surgery to create an electrode map that could be superimposed onto a picture of the brain surface. DVT was performed by calculating sequential amplitudes of ictal ECoG discharges, which were then superimposed onto the cortical and electrode maps. In all cases, DVT clearly identified the ictal onset zone and the early propagation area on the operative field. DVT allowed recognition of spatial relationships between the epileptogenic area and structural abnormalities, functional cortex, and cortical veins; and was useful to decide on the resection area.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalMinimally Invasive Neurosurgery
Volume50
Issue number1
DOIs
Publication statusPublished - Feb 1 2007

Fingerprint

Electrodes
Stroke
Frontal Lobe Epilepsy
Brain
Veins
Epilepsy

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

Cite this

Display of the epileptogenic zone on the frontal cortical surface using dynamic voltage topography of ictal electrocorticographic discharges. / Yoshida, Fumiaki; Morioka, T.; Hashiguchi, Kimiaki; Miyagi, Y.; Nagata, S.; Ohshio, M.; Sasaki, T.

In: Minimally Invasive Neurosurgery, Vol. 50, No. 1, 01.02.2007, p. 37-42.

Research output: Contribution to journalArticle

Yoshida, Fumiaki ; Morioka, T. ; Hashiguchi, Kimiaki ; Miyagi, Y. ; Nagata, S. ; Ohshio, M. ; Sasaki, T. / Display of the epileptogenic zone on the frontal cortical surface using dynamic voltage topography of ictal electrocorticographic discharges. In: Minimally Invasive Neurosurgery. 2007 ; Vol. 50, No. 1. pp. 37-42.
@article{074f6f1de53a4e4b99ed463ca6d97a04,
title = "Display of the epileptogenic zone on the frontal cortical surface using dynamic voltage topography of ictal electrocorticographic discharges",
abstract = "To evaluate the usefulness of computerized brain-surface dynamic voltage topography (DVT) of ictal electrocorticographic (ECoG) discharges to localize and identify epileptogenic areas, 3 patients with intractable frontal lobe epilepsy who underwent epilepsy surgery after chronic subdural electrode recording were assessed. Cortical surfaces and subdural electrodes were photographed during initial surgery to create an electrode map that could be superimposed onto a picture of the brain surface. DVT was performed by calculating sequential amplitudes of ictal ECoG discharges, which were then superimposed onto the cortical and electrode maps. In all cases, DVT clearly identified the ictal onset zone and the early propagation area on the operative field. DVT allowed recognition of spatial relationships between the epileptogenic area and structural abnormalities, functional cortex, and cortical veins; and was useful to decide on the resection area.",
author = "Fumiaki Yoshida and T. Morioka and Kimiaki Hashiguchi and Y. Miyagi and S. Nagata and M. Ohshio and T. Sasaki",
year = "2007",
month = "2",
day = "1",
doi = "10.1055/s-2007-950384",
language = "English",
volume = "50",
pages = "37--42",
journal = "Minimally Invasive Neurosurgery",
issn = "0946-7211",
publisher = "Georg Thieme Verlag",
number = "1",

}

TY - JOUR

T1 - Display of the epileptogenic zone on the frontal cortical surface using dynamic voltage topography of ictal electrocorticographic discharges

AU - Yoshida, Fumiaki

AU - Morioka, T.

AU - Hashiguchi, Kimiaki

AU - Miyagi, Y.

AU - Nagata, S.

AU - Ohshio, M.

AU - Sasaki, T.

PY - 2007/2/1

Y1 - 2007/2/1

N2 - To evaluate the usefulness of computerized brain-surface dynamic voltage topography (DVT) of ictal electrocorticographic (ECoG) discharges to localize and identify epileptogenic areas, 3 patients with intractable frontal lobe epilepsy who underwent epilepsy surgery after chronic subdural electrode recording were assessed. Cortical surfaces and subdural electrodes were photographed during initial surgery to create an electrode map that could be superimposed onto a picture of the brain surface. DVT was performed by calculating sequential amplitudes of ictal ECoG discharges, which were then superimposed onto the cortical and electrode maps. In all cases, DVT clearly identified the ictal onset zone and the early propagation area on the operative field. DVT allowed recognition of spatial relationships between the epileptogenic area and structural abnormalities, functional cortex, and cortical veins; and was useful to decide on the resection area.

AB - To evaluate the usefulness of computerized brain-surface dynamic voltage topography (DVT) of ictal electrocorticographic (ECoG) discharges to localize and identify epileptogenic areas, 3 patients with intractable frontal lobe epilepsy who underwent epilepsy surgery after chronic subdural electrode recording were assessed. Cortical surfaces and subdural electrodes were photographed during initial surgery to create an electrode map that could be superimposed onto a picture of the brain surface. DVT was performed by calculating sequential amplitudes of ictal ECoG discharges, which were then superimposed onto the cortical and electrode maps. In all cases, DVT clearly identified the ictal onset zone and the early propagation area on the operative field. DVT allowed recognition of spatial relationships between the epileptogenic area and structural abnormalities, functional cortex, and cortical veins; and was useful to decide on the resection area.

UR - http://www.scopus.com/inward/record.url?scp=34547557677&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547557677&partnerID=8YFLogxK

U2 - 10.1055/s-2007-950384

DO - 10.1055/s-2007-950384

M3 - Article

C2 - 17546542

AN - SCOPUS:34547557677

VL - 50

SP - 37

EP - 42

JO - Minimally Invasive Neurosurgery

JF - Minimally Invasive Neurosurgery

SN - 0946-7211

IS - 1

ER -