Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Automatic Detection of Fetal Movement Using M-Mode Ultrasonography

M-Mode 초음파 영상을 이용한 태동의 자동 검출

  • Kwon, J.H. (Department of Biomedical Engineering, Hanyang University) ;
  • Kang, D.J. (Department of Biomedical Engineering, Hanyang University) ;
  • Kim, S.B. (Department of Biomedical Engineering, Hanyang University) ;
  • Park, M.I. (Department of Obstetrics and Gynecology, Medical Center, Hanyang University) ;
  • Kim, Sun-I. (Department of Biomedical Engineering, Hanyang University)
  • 권중혁 (한양대학교 의용생체공학과) ;
  • 강동주 (한양대학교 의용생체공학과) ;
  • 김새별 (한양대학교 의용생체공학과) ;
  • 박문일 (한양대학교 의과대학 산부인과) ;
  • 김선일 (한양대학교 의용생체공학과)
  • Published : 1998.11.20
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Abstract

In this paper, we propose an algorithm to detect fetal movements using M-mode ultrasonography. To do this work automatically, we find the crosscorrelation between the current data vector of the depth direction of M-mode image and the previous one. In the crosscorrelation estimator, the variations of time lag $\tau$ at maximum crosscorrelation value means fetal movements. A woman in the 37th week of pregnancy was monitored and the ultrasonic image of fetus was recorded over 20-minute period to detect fetal movements using B-mode and M-mode ultrasonography simultaneously. And the presented method was compared with maternal perception and B-mode ultrasonography observed by clinician. The maternal perception method detected only 57% of all fetal movements observed by clinician. The detection of the presented method corresponds to the clinician's detection result.

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