Adaptive cancellation of the pacing stimulus artifact in the gastric myoelectrical recordings

Zhiyue Lin, Jian De Z. Chen, Richard W. McCallum

Research output: Contribution to journalConference articlepeer-review

Abstract

To evaluate the effects of gastric pacing, several electrodes are usually placed on the serosal surface of the stomach along the greater curvature so that one can be used for delivering electrical currents and others for recording gastric myoelectrical activity. One of problems with these recordings is the pacing stimulus artifact superimposed on the natural gastric myoelectrical signals which make it difficult to analyze accurately. This paper presents an effective transform-domain adaptive filtering method for the cancellation of the pacing stimulus artifact in the gastric myoelectrical signals obtained through serosal electrodes during gastric pacing. Results from both simulations and real signals demonstrated that the pacing stimulus artifact could be effectively canceled while the natural gastric myoelectrical signal was not affected by adaptive filtering.

Original languageEnglish (US)
Pages (from-to)995-996
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume3
StatePublished - Dec 1 1996
Externally publishedYes
EventProceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5) - Amsterdam, Neth
Duration: Oct 31 1996Nov 3 1996

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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