On-line spectral analysis of electrogastrographical signals

J. Chen, J. Vandewalle, W. Sansen, G. Vantrappen, J. Janssens

Research output: Contribution to conferencePaperpeer-review

Abstract

The recording of human gastric myoelectrical activity by means of cutaneous electrodes attached on the abdominal skin, called electrogastrography (EGG), provides a noninvasive method of studying the electrogastric behavior. The normal frequency of the gastric signal is about 0.05 Hz. However, sudden changes of its frequency have been observed and are generally considered to be related to the gastric motility disorder. This suggests that spectral analysis could serve as a valuable tool for practical purposes. An autoregressive moving-average spectral method is presented. It is based on the adaptive IIR filter and therefore provides both time and frequency information of the signal. The method has been applied to the running spectral analysis of the cutaneous EGG signals. The spectral analysis of the postprandial EGGs is presented.

Original languageEnglish (US)
Pages1186-1187
Number of pages2
StatePublished - Dec 1 1988
Externally publishedYes
EventProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society - New Orleans, LA, USA
Duration: Nov 4 1988Nov 7 1988

Other

OtherProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityNew Orleans, LA, USA
Period11/4/8811/7/88

ASJC Scopus subject areas

  • Engineering(all)

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