Multichannel magnetoencephalography in ablative seizure surgery outside the anteromesial temporal lobe

Joseph R. Smith; Barry J. Sclnvartz; Christopher Gallen; William Orrison; Jeffrey Lewine; Anthony M. Murro; Don W. King; Yong D. Park

doi:10.1159/000098901

Multichannel magnetoencephalography in ablative seizure surgery outside the anteromesial temporal lobe

Joseph R. Smith, Barry J. Sclnvartz, Christopher Gallen, William Orrison, Jeffrey Lewine, Anthony M. Murro, Don W. King, Yong D. Park

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Magnetoencephalography (MEG) was used to evaluate 40candidates for seizure surgery thought to have foci outside the anteromesial temporal lobe. Of 29 cases with electrographic data suggesting a convexity focus. MEG spikes were recorded from 28. In 21. MEG and electrographic data were localized to the same area. Invasive studies were, or could have been, avoided in 13 cases based on MEG and other noninvasive data. MEG was not of localizing value in 4 orbitofrontal or 7-depth-nonlocalized cases. Seventeen patients with MEG epileptiform data have had postoperative follow-up. Eight of 13 with electrographic and MEG data localized to the same area are seizure free. None of 4 with spatial discordance of MEG and electrographic data are seizure free.

Original language	English (US)
Pages (from-to)	81-85
Number of pages	5
Journal	Stereotactic and Functional Neurosurgery
Volume	65
Issue number	1-4
DOIs	https://doi.org/10.1159/000098901
State	Published - Jan 1 1995

Keywords

MEG/EEG agreement
Magnetoencephalography
Single equivalent current dipole

ASJC Scopus subject areas

Surgery
Clinical Neurology

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10.1159/000098901

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title = "Multichannel magnetoencephalography in ablative seizure surgery outside the anteromesial temporal lobe",

abstract = "Magnetoencephalography (MEG) was used to evaluate 40candidates for seizure surgery thought to have foci outside the anteromesial temporal lobe. Of 29 cases with electrographic data suggesting a convexity focus. MEG spikes were recorded from 28. In 21. MEG and electrographic data were localized to the same area. Invasive studies were, or could have been, avoided in 13 cases based on MEG and other noninvasive data. MEG was not of localizing value in 4 orbitofrontal or 7-depth-nonlocalized cases. Seventeen patients with MEG epileptiform data have had postoperative follow-up. Eight of 13 with electrographic and MEG data localized to the same area are seizure free. None of 4 with spatial discordance of MEG and electrographic data are seizure free.",

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AU - Smith, Joseph R.

AU - Sclnvartz, Barry J.

AU - Gallen, Christopher

AU - Orrison, William

AU - Lewine, Jeffrey

AU - Murro, Anthony M.

AU - King, Don W.

AU - Park, Yong D.

PY - 1995/1/1

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N2 - Magnetoencephalography (MEG) was used to evaluate 40candidates for seizure surgery thought to have foci outside the anteromesial temporal lobe. Of 29 cases with electrographic data suggesting a convexity focus. MEG spikes were recorded from 28. In 21. MEG and electrographic data were localized to the same area. Invasive studies were, or could have been, avoided in 13 cases based on MEG and other noninvasive data. MEG was not of localizing value in 4 orbitofrontal or 7-depth-nonlocalized cases. Seventeen patients with MEG epileptiform data have had postoperative follow-up. Eight of 13 with electrographic and MEG data localized to the same area are seizure free. None of 4 with spatial discordance of MEG and electrographic data are seizure free.

AB - Magnetoencephalography (MEG) was used to evaluate 40candidates for seizure surgery thought to have foci outside the anteromesial temporal lobe. Of 29 cases with electrographic data suggesting a convexity focus. MEG spikes were recorded from 28. In 21. MEG and electrographic data were localized to the same area. Invasive studies were, or could have been, avoided in 13 cases based on MEG and other noninvasive data. MEG was not of localizing value in 4 orbitofrontal or 7-depth-nonlocalized cases. Seventeen patients with MEG epileptiform data have had postoperative follow-up. Eight of 13 with electrographic and MEG data localized to the same area are seizure free. None of 4 with spatial discordance of MEG and electrographic data are seizure free.

KW - MEG/EEG agreement

KW - Magnetoencephalography

KW - Single equivalent current dipole

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Multichannel magnetoencephalography in ablative seizure surgery outside the anteromesial temporal lobe

Abstract

Keywords

ASJC Scopus subject areas

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