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Titolo:
Dipole source localization of interictal epileptiform activity in temporallobe epilepsy with medial temporal lesion
Autore:
Mine, S; Iwasa, H; Nakajima, Y; Yamaura, A;
Indirizzi:
Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, Chiba 2608670, Japan ChibaUniv Chiba Japan 2608670 eurol Surg, Chuo Ku, Chiba 2608670, Japan Chiba Univ, Sch Med, Dept Psychiat, Chiba 2608670, Japan Chiba Univ Chiba Japan 2608670 Med, Dept Psychiat, Chiba 2608670, Japan Chiba Univ, Sch Med, Dept Physiol, Chiba 2608670, Japan Chiba Univ ChibaJapan 2608670 h Med, Dept Physiol, Chiba 2608670, Japan
Titolo Testata:
PSYCHIATRY AND CLINICAL NEUROSCIENCES
fascicolo: 1, volume: 54, anno: 2000,
pagine: 23 - 29
SICI:
1323-1316(200002)54:1<23:DSLOIE>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRAIN HEAD MODEL; TRACING METHOD; POTENTIALS; ELECTROENCEPHALOGRAPHY; CORTEX;
Keywords:
dipole source localization; dipole tracing; interictal epileptiform activity; temporal lobe epilepsy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Mine, S Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, 1-8-1 Inohana, Chiba 2608670, Japan Chiba Univ 1-8-1 Inohana Chiba Japan 2608670 Chiba 2608670, Japan
Citazione:
S. Mine et al., "Dipole source localization of interictal epileptiform activity in temporallobe epilepsy with medial temporal lesion", PSY CLIN N, 54(1), 2000, pp. 23-29

Abstract

Dipole sources of interictal epileptiform activities recorded by conventional electroencephalogram (EEG) were estimated using the dipole tracing method. Four cases of temporal lobe epilepsy with medial temporal lesions were studied. Two patients with hippocampal sclerosis, one patient with granulation in the hippocampus and one patient with cavernous angioma were involvedin the study. Interictal epileptiform activities were classified into two patterns according to the topography of spikes. They were widespread spikesover the parasagittal electrodes (parasagittal spikes) and restricted spikes at the temporal electrodes (temporal spikes). Dipole sources of parasagittal spikes were localized in the medio-basal temporal lobe with verticallyorientated vector moment. Dipole sources of temporal spikes were localizedin the medio-basal temporal lobe with horizontally orientated vector moment. Locations of dipoles and directions of vector moments were consistent with topography and polarity of spikes. The difference in the two patterns ofinterictal epileptiform activities was derived from the difference in the direction of the vector moment of dipole sources. There was no difference in the location of dipole sources. Both the dipole sources and the lesions were localized in the same medio-basal temporal lobe. Dipole tracing was very useful in localizing the dipole sources of interictal epileptiform activities and in understanding the neurophysiological background.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 10:12:03