| Noninvasive Epileptic Seizure Localization from Stochastic Behavior of Short Duration Interictal High Density Scalp EEG Data. | |
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MedLine Citation:
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PMID: 21644027 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The stochastic behavior of the phase synchronization index (SI) in different EEG bands was examined for noninvasive localization of the epileptogenic areas from the short duration (30-60 s), seizure-free and spike-free high density (256 channel) scalp EEG data. We also examined the cross-frequency and cross-electrode coupling in different EEG bands. EEG data of four subjects was used. The seizure areas were localized with subdural recordings with an 8×8 grid electrode array. It was found that the stochastic behavior of the SI in low gamma band (30-50 Hz) was higher in epileptogenic areas. The beta (12-30 Hz) band also showed similar tendencies. The stochastic behavior in theta (3-7 Hz) band was depressed in the seizure area while it was widespread in large areas over the scalp in the alpha (7-12 Hz) band. The stochastic behavior of the cross-frequency and cross-electrode couplings in theta-gamma, alpha-gamma and beta-gamma bands were decreased in the seizure areas for all four subjects. These findings suggest that it is possible to localize the epileptogenic areas from the short duration seizure-free and spike-free high density scalp EEG data. |
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Authors:
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Ceon Ramon; Mark D Holmes |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-5 |
Journal Detail:
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Title: Brain topography Volume: - ISSN: 1573-6792 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8903034 Medline TA: Brain Topogr Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Departments of Electrical Engineering, University of Washington, Campus Box 352500, Seattle, WA, 98115, USA, ceon@u.washington.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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