Computer-aided fetus analysis and diagnosis system using fetal heart rate

Chung-Hsien Wu, C. H. Yu, A. T. Lin

Research output: Contribution to journalArticle

Abstract

Antepartum Cardiotocography (CTG) is one of the few techniques available today to assess fetal conditions in high-risk pregnancies. Visual interpretation of CTG traces is unreliable due to the intra- and inter- observer variability. In order to eliminate observer variability and to increase the accuracy of CTG, computer analysis of fetal heart rate (FHR) patterns is introduced. The experience with computerized systems has shown that the best indicator of fetal conditions is long- or short-term variation. The availability of numerical measurements enables the detection of small changes in FHR occurring in time, so when initial deterioration signs arise, the fetus can be followed up longitudinally. In our approach, these fetal heart rate signals had been collected and used to establish a fetal heart rate analysis and diagnosis system using discrete wavelet transform. We applied this system to clinical use. Feedback information was collected and used to improve the system performance. Using the signal, this system can provide an objective suggestion and a more reliable assessment of at risk fetuses.

Original languageEnglish
Pages (from-to)233-243
Number of pages11
JournalChinese Journal of Medical and Biological Engineering
Volume18
Issue number4
Publication statusPublished - 1998 Dec 1

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Computer aided analysis
Computer aided diagnosis
Fetal Heart Rate
Cardiotocography
Fetus
Computer systems
Observer Variation
High-Risk Pregnancy
Wavelet Analysis
Signal systems
Discrete wavelet transforms
Deterioration
Availability
Feedback

All Science Journal Classification (ASJC) codes

  • Biophysics

Cite this

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Computer-aided fetus analysis and diagnosis system using fetal heart rate. / Wu, Chung-Hsien; Yu, C. H.; Lin, A. T.

In: Chinese Journal of Medical and Biological Engineering, Vol. 18, No. 4, 01.12.1998, p. 233-243.

Research output: Contribution to journalArticle

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AB - Antepartum Cardiotocography (CTG) is one of the few techniques available today to assess fetal conditions in high-risk pregnancies. Visual interpretation of CTG traces is unreliable due to the intra- and inter- observer variability. In order to eliminate observer variability and to increase the accuracy of CTG, computer analysis of fetal heart rate (FHR) patterns is introduced. The experience with computerized systems has shown that the best indicator of fetal conditions is long- or short-term variation. The availability of numerical measurements enables the detection of small changes in FHR occurring in time, so when initial deterioration signs arise, the fetus can be followed up longitudinally. In our approach, these fetal heart rate signals had been collected and used to establish a fetal heart rate analysis and diagnosis system using discrete wavelet transform. We applied this system to clinical use. Feedback information was collected and used to improve the system performance. Using the signal, this system can provide an objective suggestion and a more reliable assessment of at risk fetuses.

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