The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Estimation Algorithm of Bowel Motility Based on Regression Analysis of the Jitter and Shimmer of Bowel Sounds

장음 특징 변수의 회귀 분석을 통한 장 운동성 추정법

  • 김거식 (전북대 대학원 전자정보공학부) ;
  • 서정환 (전북대 의학전문대학원 재활의학교실) ;
  • 김민호 (전북대 대학원 전자정보공학부) ;
  • 유상훈 (전북대 대학원 전자정보공학부) ;
  • 송철규 (전북대 전기전자컴퓨터공학부, 영상정보신기술연구소)
  • Received : 2010.10.29
  • Accepted : 2011.01.12
  • Published : 2011.04.01
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Abstract

Bowel sounds (BS) are produced by the movement of the intestinal contents in the lumen of the gastro-intestinal tract during peristalsis and thus, it can be used clinically as useful indicators of bowel motility. We devised an estimation algorithm of bowel motility based on the regression modeling of the jitter and shimmer of BS signals measured by auscultation. Ten healthy males ($23.5\pm2.1$ years) were examined. Consequently, the correlation coefficient, coefficient of determination and standard error between the colon transit times (CTT) measured by a conventional radiograph and the values estimated by our algorithm were 0.98, 0.96 and 2.86, respectively. Also, through k-fold cross validation, the average value of the absolute differences between them was $5.0\pm2.5$ hours. This method could be used as a complementary tool for the non-invasive measurement of bowel motility.

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References

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