Detection of neonatal EEG seizure using multichannel matching pursuit

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Detection of neonatal EEG seizure using multichannel matching pursuit

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Title: Detection of neonatal EEG seizure using multichannel matching pursuit
Author: Khlif, M.S.; Mesbah, M; Boashash, B; Colditz, P
Abstract: It is unusual for a newborn to have the classic “tonic-clonic” seizure experienced by adults and older children. Signs of seizure in newborns are either subtle or may become clinically silent. Therefore, the electroencephalogram (EEG) is becoming the most reliable tool for detecting neonatal seizure. Being non-stationary and multicomponent, EEG signals are suitably analyzed using time-frequency (TF) based methods. In this paper, we present a seizure detection method using a new measure based on the matching pursuit (MP) decomposition of EEG data. Signals are represented in the TF domain where seizure structural characteristics are extracted to form a new coherent TF dictionary to be used in the MP decomposition. A new approach to set data-dependent thresholds, used in the seizure detection process, is proposed. To enhance the performance of the detector, the concept of areas of incidence is utilized to determine the geometrical correlation between EEG recording channels.
Description: This paper defines a new structural complexity measure (SCM) for neonatal seizure detection, based on the MP decomposition of EEG using QTFDs, resulting in 4% reduction in overall FPR. (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated).
URI: http://hdl.handle.net/10576/10809
Date: 2008-08

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