Spectral Analysis of Episodic Rhythmic Variations in the Cutaneous Electrogastrogram

Jiande Chen, William R. Stewart, Richard W. McCallum

Research output: Contribution to journalArticle

Abstract

Electrical activity of the stomach can be measured using surface electrodes. The cutaneous recording of gastric electrical activity is called the electrogastrogram (EGG). Gastric electrical dysrhythmic events associated with abnormal conditions of the stomach may be detected from the EGG. An adaptive spectral analysis method which is based on autoregressive moving average modeling has previously been developed. The aim of this paper is to demonstrate the ability of the previous method in detecting gastric dysrhythmic events from the EGG. A series of bench tests simulating typical prohlems with the analysis of nonstationary electric potentials was conducted. The application of the adaptive spectral analysis method to dysrhythmic events and rhythmic variations of the gastric slow wave is presented in this paper. The adaptive spectral analysis approach provides several advantages: narrow frequency peaks permitting more precise frequency identification, determination of changes in frequency components at any time point, and enhanced interpretation of cutaneous EGG recordings.

Original languageEnglish (US)
Pages (from-to)128-135
Number of pages8
JournalIEEE Transactions on Biomedical Engineering
Volume40
Issue number2
DOIs
StatePublished - 1993
Externally publishedYes

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Spectrum analysis
Electrodes
Electric potential

ASJC Scopus subject areas

  • Biomedical Engineering

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Spectral Analysis of Episodic Rhythmic Variations in the Cutaneous Electrogastrogram. / Chen, Jiande; Stewart, William R.; McCallum, Richard W.

In: IEEE Transactions on Biomedical Engineering, Vol. 40, No. 2, 1993, p. 128-135.

Research output: Contribution to journalArticle

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