標題: Detection of Intracranial Electroencephalogram Spikes by Phase Space Reconstruction
作者: Chan, Hsiao-Lung
Tsai, Yu-Tai
Chang, Bao-Luen
Wu, Tony
Lee, Shih-Tseng
Lin, Bor-Shyh
Chao, Pei-Kuang
影像與生醫光電研究所
Institute of Imaging and Biomedical Photonics
關鍵字: Electroencephalogram;epileptic focus;spike detection;spike classification;phase space reconstruction
公開日期: 2012
摘要: Distinguishing epileptic spikes from non-spike waves is commonly performed by matching morphological data to predefined spike patterns, which is limited by the waveform variety appeared in epileptic spikes. This paper proposes an unsupervised method to detecting and classifying spikes in the reconstructed phase space. The spikes detected by adaptive energy threshold are transformed to two-dimensional phase space trajectories and are then quantified by the major trajectory radius curves. These curves serve as specific features to classify the detected spikes. Our results showed that the topological mapping of the classified spikes could be potential for finding the locations of epileptic foci.
URI: http://hdl.handle.net/11536/134741
ISBN: 978-3-642-23507-8
ISSN: 1680-0737
期刊: 5TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, PTS 1 AND 2
Volume: 37
起始頁: 150
結束頁: +
顯示於類別:會議論文