Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Detection of Gastric Contraction by Vector Analysis in Electrogastrography

위전도신호의 벡터분석에 의한 위수축 측정

  • Han, Wan-Tack (Biomedical Engineering Center, Samsung Biomedical Research Institute) ;
  • Kim, In-Young (Biomedical Engineering Center, Samsung Biomedical Research Institute) ;
  • Kim, Won-Ky (Biomedical Engineering Center, Samsung Biomedical Research Institute)
  • 한완택 (삼성생명공학연구소 임상의공학센터) ;
  • 김인영 (삼성생명공학연구소 임상의공학센터) ;
  • 김원기 (삼성생명공학연구소 임상의공학센터)
  • Published : 1997.05.23
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Abstract

Electrogastrography(EGG), the cutaneous recording of the myoelectrical activity of the stomach using surface electrodes, is attractive due to its non-invasiveness. We propose feasible methods to detect tile gastric contraction by vector analysis of the surface EGG signals obtained from three paired electrodes. The amplitude and direction of the calculated EGG vector were analyzed and compared with the gastric contraction signals such as the strain gauge signal from the gastric serosa in dog. From the vector analysis of the EGG signal, we found a typical change of the amplitude and direction of the EGG vector, which can indicate occurrences of the gastric contraction.

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