Time-frequency analysis of high-frequency activity at the start of epileptic seizures

被引：0

作者：

Sun, MG ^{[1
]}

Scheuer, ML ^{[1
]}

Qian, S ^{[1
]}

Baumann, SB ^{[1
]}

Adelson, PD ^{[1
]}

Sclabassi, RJ ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Neurosurg, Pittsburgh, PA 15213 USA

来源：

PROCEEDINGS OF THE 19TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 19, PTS 1-6: MAGNIFICENT MILESTONES AND EMERGING OPPORTUNITIES IN MEDICAL ENGINEERING | 1997年 / 19卷

关键词：

brain; epilepsy; seizures; epileptic foci; high-frequency activity; EEG; subdural EEG; signal processing; time-frequency analysis; time-frequency distribution;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

High-frequency activity in the subdural electroencephalogram (SEEGs) often. appears preceding full-scale epileptic seizures. This activity may provide important information about the location of epileptic foci and the propagation of seizures within the brain. To characterize this activity we applied advanced time-frequency analysis techniques, such as the cone-kernel distribution and time-frequency signal reconstruction, to multichannel SEEG data. The data shows that the high-frequency activity has a; narrow bandwidth and a highly: variant dominant frequency; Our results also indicate a possible interaction between this high-frequency component and other low frequency components present at the start of epileptic seizures.

引用

页码：1184 / 1187

页数：4

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