Dipole source localization of ictal epileptiform activity
作者:
Seiichiro Mine,
Akira Yamaura,
Hiroto Iwasa,
Yoshio Nakajima,
Tadahiko Shibata,
Toshihiko Itoh,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 18
页码: 4007-4013
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Chronic subdural electrode;Digital EEG;Dipole source localization;Electrocorticography;Epilepsy surgery;Ictal epileptiform activity
数据来源: OVID
摘要:
DIPOLE source localization of ictal epileptiform activity recorded by scalp EEG was performed in patients prior to surgical treatment. The dipole tracing method combined with the scalp—skull—brain head model was used to locate epileptogenic foci. A digital EEG system was used for data collection. The accuracy of dipole source localization was evaluated by comparing the focus location with that obtained by chronic subdural electrocorticography. In a case of frontal lobe epilepsy with epileptogenic focus in the frontoparietal convexity, the results of dipole source localization agreed well with those obtained with chronic subdural electrocorticography. In a case of lateral temporal lobe epilepsy, the results of dipole source localization were consistent with those obtained with chronic subdural electrocorticography, but a small localization error was observed. The clinical usefulness of and suggestions for improving this method are discussed.
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