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Titolo:
Interictal and ictal magnetoencephalographic study in patients with medialfrontal lobe epilepsy
Autore:
Shiraishi, H; Watanabe, Y; Watanabe, M; Inoue, Y; Fujiwara, T; Yagi, K;
Indirizzi:
Shizuoka Higashi Hosp, Natl Epilepsy Ctr, Shizuoka, Japan Shizuoka HigashiHosp Shizuoka Japan Natl Epilepsy Ctr, Shizuoka, Japan
Titolo Testata:
EPILEPSIA
fascicolo: 7, volume: 42, anno: 2001,
pagine: 875 - 882
SICI:
0013-9580(200107)42:7<875:IAIMSI>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION COMPUTED-TOMOGRAPHY; INTRACRANIAL LOCALIZATIONS; MAGNETIC-FIELD; STIMULATION; SPIKES; AGREES; BRAIN; EEG;
Keywords:
MEG; frontal lobe epilepsy; medial cortex; midline EEG spikes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Shiraishi, H Massachusetts Gen Hosp, Nucl Magnet Resonance Ctr, Room 2301,Bldg 149,13thSt, Charlestown, MA 02129 USA Massachusetts Gen Hosp Room 2301,Bldg 149,13th St Charlestown MA USA 02129
Citazione:
H. Shiraishi et al., "Interictal and ictal magnetoencephalographic study in patients with medialfrontal lobe epilepsy", EPILEPSIA, 42(7), 2001, pp. 875-882

Abstract

Purpose: To determine whether magnetoencephalography (MEG) has any clinical value for the analysis of seizure discharges in patients with medial frontal lobe epilepsy (FLE). Methods: Four patients were studied with 74-channel MEG. Interictal and ictal electroencephalographic (EEG) and MEG recordings were obtained. The equivalent current dipoles (ECDs) of the MEG spikes were calculated. Results: In two patients with postural seizures, interictal EEG spikes occurred at Cz or Fz. The ECDs of interictal MEG spikes were localized around the supplementary motor area. In the other two patients with focal motor oroculomotor seizures, interictal EEG spikes occurred at Fz or Cz. The ECDs of interictal MEG spikes were localized at the top of the medial frontal region. The ECDs detected at MEG ictal onset were also localized in the same area as those of the interictal discharges. Conclusions: In medial FLE patients, interictal and ictal MEG indicated consistent ECD localization that corresponded to the semiology of clinical seizures. Our findings demonstrate that MEG is a useful tool for detecting epileptogenic focus.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 07:20:50