Localization of magnetic interictal discharges in temporal lobe epilepsy.

Abstract:

:Three young adults with intractable complex partial seizures were studied by electroencephalography, magnetoencephalography, and electrocorticography. Interictal electroencephalographic (EEG) spikes for each patient were grouped according to their morphological characteristics and distribution across channels. Mapping of simultaneously recorded magnetoencephalographic signals produced dipolar patterns from which the three-dimensional locations of equivalent current dipoles were calculated, whereas the mapping of EEG spikes showed single regions of electronegativity. The magnetic spikes were localized to the anterotemporal lobe, and the EEG spikes were localized somewhat anterior or posterior to the magnetic spikes. The magnetoencephalographic findings corresponded well with intraoperative electrocorticographic and depth-electrode findings of discharging areas located over the lateral temporal lobe and on the basal and mesial surfaces of the temporal cortex.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Rose DF,Sato S,Smith PD,Porter RJ,Theodore WH,Friauf W,Bonner R,Jabbari B

doi

10.1002/ana.410220311

subject

Has Abstract

pub_date

1987-09-01 00:00:00

pages

348-54

issue

3

eissn

0364-5134

issn

1531-8249

journal_volume

22

pub_type

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