Extraction and analysis of early ictal activity in subdural electroencephalogram.

Extraction and analysis of early ictal activity in subdural electroencephalogram.
复制标题

硬膜下脑电图中早期发作活动的提取和分析。

DOI:
10.1114/1.1408928
复制
发表时间:
2001
影响因子:
3.8
通讯作者:
Sclabassi,RJ
Sclabassi,RJ
中科院分区:
工程技术2区
文献类型:
--
作者:
Sun,M;Scheuer,ML;Sclabassi,RJ

文献摘要

参考文献

相似文献

硬膜下脑电(SEEGs)对局灶性切除癫痫手术患者的原发致痫区域定位有重要价值。包含从发作间期活动到发作活动的过渡的数据段携带最关键的诊断信息。在这一过渡期内的计算机信号提取是一个具有挑战性的信号处理问题。在这项工作中,提出了一种两步法来提取早期发作活动。在第一步中,我们利用小波域中的非线性信号分解技术将SEEG数据分离为发作分量和背景分量。在第二步中,我们使用时频分析和一种新的积分算法来提取所需信息。我们对临床记录数据的实验表明,该方法是非常有效的,允许我们揭示数据中的重要隐藏特征,否则无法观察到这些特征。©2001生物医学工程学会.PAC01:8719Nn,0260Jh
Subdural electroencephalograms (SEEGs) are of great value in localizing primary epileptogenic regions in patients undergoing evaluation for focal resective epilepsy surgery. The data segments which contain a transition from interictal to ictal activity carry the most critical diagnostic information. Computer signal extraction within this transition period represents a challenging signal processing problem. In this work a two-step method is presented to extract early ictal activity. In the first step we employ a nonlinear signal decomposition technique in the wavelet domain to separate SEEG data into ictal and background components. In the second step we use time-frequency analysis and a novel integration algorithm to extract the desired information. Our experiments on clinically recorded data indicate that this method is highly effective allowing us to reveal important hidden features in the data which could not otherwise be observable. ©2001 Biomedical Engineering Society.PAC01: 8719Nn, 0260Jh
大气微量气体与风之间的比率意味着鸟类导航的可利用信息:阐明实验结果的模型
DOI: 10.5194/bg-10-6929-2013
发表时间: 2013
期刊: Biogeosciences
影响因子: 4.9
作者:
H. G. Wallraff
通讯作者: H. G. Wallraff
鸽子利用嗅觉线索进行导航
DOI: 10.1080/08927014.1989.9525511
发表时间: 1989
影响因子: 1.2
作者:
F. Papi
通讯作者: F. Papi
DOI: --
发表时间: 1996
期刊:
影响因子: --
作者:
K. Able
通讯作者: K. Able
DOI: 10.1007/bf00613834
发表时间: 1975-01-01
期刊: JOURNAL OF COMPARATIVE PHYSIOLOGY
影响因子: --
作者:
BALDACCINI, NE;BENVENUTI, S;PAPI, F
通讯作者: PAPI, F
DOI: 10.4161/cib.28565
发表时间: 2014
影响因子: --
作者:
Wallraff HG
通讯作者: Wallraff HG