Detection and localization of complex SEEG patterns in epileptic seizures using time-frequency analysis

Author

Shamsollahi, M.B. ; Senhadji, L. ; Le Bouquin-Jeannes, R.

Author_Institution

Lab. Traitement du Signal et de l´´Image, Rennes I Univ., France

fYear

1996

fDate

18-21 Jun 1996

Firstpage

105

Lastpage

108

Abstract

The authors applied signal detection techniques based on time-frequency signal analysis on depth EEG recordings in order to detect and to localize some patterns in the time-frequency plane. This paper deals with a particular pattern representing a discharge activity in the ictal phase. Beside the detection techniques using fixed-kernel Time-Frequency Representation (Auto TFR and Cross TFR) presented here, a new technique using Signal-Dependent TFR is proposed and a comparison of results is given

Keywords

electroencephalography; medical signal processing; signal detection; time-frequency analysis; complex surface EEG patterns; depth EEG recordings; electrodiagnostics; fixed-kernel time-frequency representation; ictal phase; time-frequency plane; time-frequency signal analysis; Additive noise; Electrodes; Electroencephalography; Epilepsy; Kernel; Pattern analysis; Sensor phenomena and characterization; Signal analysis; Signal detection; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on

Conference_Location

Paris

Print_ISBN

0-7803-3512-0

Type

conf

DOI

10.1109/TFSA.1996.546697

Filename

546697