Abstract
Analysis of variability of fetal heart rate (FHR) is very important in prediction of the fetal wellbeing. The beat-to-beat variability is described quantitatively by the indices originated from invasive fetal electrocardiography which provides the FHR signal in a form of time event series. Nowadays, monitoring instrumentation is based on Doppler ultrasound technology. We used two bedside fetal monitors with different processing methods for heart beats detection and FHR signal determination: the autocorrelation and crosscorrelation techniques. Both monitors provide the output signal in a form of evenly spaced samples. The goal of this work was to evaluate the influence of signal representation on the indices describing FHR variability. For both monitors the indices calculated for the sampled signal decreased in relation to the indices determined from event series.
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© 2007 Springer-Verlag Berlin Heidelberg
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Kupka, T., Horoba, K., Jezewski, J., Gacek, A., Labaj, P., Zietek, J. (2007). The Influence of Signal Representation on Fetal Heart Rate Variability Analysis. In: Müller-Karger, C., Wong, S., La Cruz, A. (eds) IV Latin American Congress on Biomedical Engineering 2007, Bioengineering Solutions for Latin America Health. IFMBE Proceedings, vol 18. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74471-9_1
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DOI: https://doi.org/10.1007/978-3-540-74471-9_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-74470-2
Online ISBN: 978-3-540-74471-9
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