北京大学医学部机构知识库
Advanced  
IR@PKUHSC  > 北京大学第一临床医学院  > 神经内科  > 期刊论文
学科主题: 神经病学
题名:
小波分析用于颅内电极记录发作起始脑电图信号的研究
其他题名: Analysis of intracranial electroencephalogram records during seizure onset using wavelet transform
作者: 陈佳1; 刘凤君1; 周文静1; 吴逊1
关键词: 癫痫 ; 脑电描记术 ; 电极,植入 ; Epilepsy ; Electroencephalography ; Electrodes,implanted
刊名: 中华神经科杂志
发表日期: 2012
DOI: 10.3760/cma.j.issn.1006-7876.2012.04.005
卷: 45, 期:4, 页:229-232
收录类别: 中国科技核心期刊 ; CSCD
文章类型: Journal Article
摘要: 目的 初步研究颅内电极记录脑电图发作起始时期的小波熵变化趋势,探索其用于脑电图自动检测的前景.方法 收集9例术后预后为Engel Ⅰ级的癫痫患者,回顾性分析颅内电极脑电图记录到的28次发作事件,比较发作起始区(SOZ)电极和非SOZ电极在发作前、发作起始、发作中的小波熵变化情况.结果 SOZ电极发作起始小波熵(0.326±0.250)较发作前背景(0.053±0.047)升高,发作中小波熵(0.138±0.097)较发作起始有所下降,差异有统计学意义(F=30.904,P=0.000);非SOZ电极的小波熵在不同状态下末见明显变化.进一步将时窗小波熵用于发作起始脑电活动的检测显示,时窗小波熵可以敏感地反映出发作起始电活动的时间及电极.结论 SOZ电极小波熵在发作起始时显著增高,可用于协助癫痫术前定位. Objective To study the wavelet entropy of intracranial electrode recording electroencephalogram (EEG) during the seizure onset,and explore the prospect of applying it for automatic detection of EEG.Methods Twenty-eight seizure events of 9 epilepsy patients whose outcome were Engel class Ⅰ were retrospective analyzed,by comparing the pre-ictal,initial ictal and ictal wavelet energy entropy variations of both seizure onset zone (SOZ) contacts and non-SOZ contacts.Results The wavelet energy entropy of SOZ contacts increased from pre-ictal (0.053 ± 0.047 ) to initial ictal (0.326 ± 0.250),while it declined during the ictal (0.138 ± 0.097,F =30.904,P =0.000).There was no obvious change of the wavelet energy entropy of non-SOZ contacts in different periods.By further applying time-window wavelet entropy to the detection of intracranial EEG,the results showed that the time-window wavelet energy entropy could be sensitive to reflect the seizure onset time and electrodes.Conclusion The wavelet energy entropy of contacts inside SOZ increased significantly at scizurc onset,and this conclusion can be used to assist in presurgical localization of epilepsy.
语种: 中文
原文出处: 查看原文
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/40891
Appears in Collections:北京大学第一临床医学院_神经内科_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.100034,北京大学第一医院神经内科
2.清华大学玉泉医院癫痫中心
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[陈佳]'s Articles
[刘凤君]'s Articles
[周文静]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[陈佳]‘s Articles
[刘凤君]‘s Articles
[周文静]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  北京大学医学部 - Feedback
Powered by CSpace