An algorithm for the ambulatory monitoring of fetal heart rate

M. I. Ibrahimy, M. A. Mohd Ali, E. Zahedi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A real-time algorithm has been developed for the simultaneous measurement of the fetal and maternal heart rates from the abdominal signal, which was sampled with 13-bit resolution at 500 Hz. The algorithm is based on digital filtering, adaptive thresholding, differencing of local maxima & minima and statistical properties in the time domain. The technique has been developed through a combination and modification of earlier techniques. The algorithm is found to be effective in resolving the fetal heart rate (FHR) when the fetal R waves and that of the maternal are overlapped. The algorithm has been tested on recorded ambulatory data from 36 to 41 gestational weeks of pregnancy, resulting in an average accuracy of 82% (min. 68%) for the fetal heart rate detection. A microcontroller based system has been developed and the proposed algorithm implemented in real-time. The above system is capable of continuous ambulatory FHR monitoring.

    Original languageEnglish
    Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
    EditorsJ.D. Enderle
    Pages3048-3051
    Number of pages4
    Volume4
    Publication statusPublished - 2000
    Event22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, United States
    Duration: 23 Jul 200028 Jul 2000

    Other

    Other22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
    CountryUnited States
    CityChicago, IL
    Period23/7/0028/7/00

    Fingerprint

    Monitoring
    Adaptive filtering
    Microcontrollers

    Keywords

    • Ambulatory
    • Digital filter
    • Fetal heart rate

    ASJC Scopus subject areas

    • Bioengineering

    Cite this

    Ibrahimy, M. I., Mohd Ali, M. A., & Zahedi, E. (2000). An algorithm for the ambulatory monitoring of fetal heart rate. In J. D. Enderle (Ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 4, pp. 3048-3051)

    An algorithm for the ambulatory monitoring of fetal heart rate. / Ibrahimy, M. I.; Mohd Ali, M. A.; Zahedi, E.

    Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. ed. / J.D. Enderle. Vol. 4 2000. p. 3048-3051.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Ibrahimy, MI, Mohd Ali, MA & Zahedi, E 2000, An algorithm for the ambulatory monitoring of fetal heart rate. in JD Enderle (ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 4, pp. 3048-3051, 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago, IL, United States, 23/7/00.
    Ibrahimy MI, Mohd Ali MA, Zahedi E. An algorithm for the ambulatory monitoring of fetal heart rate. In Enderle JD, editor, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 4. 2000. p. 3048-3051
    Ibrahimy, M. I. ; Mohd Ali, M. A. ; Zahedi, E. / An algorithm for the ambulatory monitoring of fetal heart rate. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. editor / J.D. Enderle. Vol. 4 2000. pp. 3048-3051
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