文章基本信息

标题：A four-stage localization method for epileptic seizure onset zones
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作者：Ting Wan ; Min Wu ; Xuzhi Lai 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：4412-4417
DOI：10.1016/j.ifacol.2017.08.915
语种：English
出版社：Elsevier
摘要：AbstractThis paper presents a four-stage localization method for epileptic seizure onset zones (SOZs). This method combines the advantages of both the Shannon-entropy-based complex Morlet wavelet transform (SE-CMWT) and adaptive-genetic-algorithm-based matching pursuit (AGA-MP) methods to achieve satisfactory localization performance. The Hilbert transform method is used to identify events of interest. The SE-CMWT-based power spectral density method is applied to acquire channels of interest (CoIs). By using the Morlet wavelets as the dictionary elements, the AGA-MP method combined with Morlet wavelets is developed to detect high-frequency oscillations (HFOs) on CoIs with faster speed and higher accuracy than the AGA-MP method. And the characteristics of HFOs are used to localize SOZs based on the half-maximum method. A comparison shows that our method has higher sensitivity and specificity than four existing methods.
关键词：KeywordsEpilepsySeizure onset zone (SOZ)High-frequency oscillation (HFO)Four-stage localization method