Improving the periodicity measurement in fetal heart activity signal

• Autorzy: Roj D. , Wróbel J. , Horoba K. , Przybyła T. , Kupka T.
• Języki publikacji: EN

Abstrakty

EN

In this paper we discussed the influence of preliminary processing of the ultrasound Doppler signal on accuracy of the fetal heart rate estimation as well as on reliability of the FHR instantaneous variability assessment. We attempted to develop an optimal processing channel of US Doppler signal in order to measure the periodicity of fetal heart activity with accuracy as close as possible to that ensured by FECG. The FHR values determined from the US signal were compared to the reference data obtained from direct FECG. In a final evaluation we used the parameters describing the FHR variability as the clinically important signal features being the most sensitive to any periodicity inaccuracy. The results proved that an application of proposed algorithms improves the accuracy of interval measurements and FHR instantaneous variability assessment in relation to the new-generation fetal monitors.

Słowa kluczowe

EN

fetal monitoring; fetal heart rate; ultrasound Doppler

PL

monitorowanie płodu; tętno płodu; USG metodą Dopplera

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2010
• Tom: Vol. 16
• Strony: 19--26
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Roj D.

• Institute of Medical Technology and Equipment, Biomedical Signal Processing Department, ul. Roosevelta 118, 41-800 Zabrze, Poland

autor

Wróbel J.

autor

Horoba K.

autor

Przybyła T.

autor

Kupka T.

Bibliografia

• [1] De HAAN J., van BEMMEL J.H., VERSTEEG B. et al., Quantitative evaluation of fetal heart rate patterns; I. Processing methods, European Journal of Obstetrics & Gynecology and Reproductive Biology, Vol. 1, 1971, pp. 95–102.
• [2] JEZEWSKI J., KUPKA T. and HOROBA K., Extraction of Fetal Heart Rate Signal as Time Event Series from Evenly Sampled Data Acquired Using Doppler Ultrasound Technique, IEEE Transactions on Biomedical Engineering, Vol. 55, 2008, pp. 805–810.
• [3] JEZEWSKI J., WROBEL J. and HOROBA K., Comparison of Doppler ultrasound and direct electrocardiography acquisition techniques for quantification of Fetal Heart Rate variability, IEEE Transactions on Biomedical Engineering, Vol. 53, 2006, pp. 855–864.
• [4] KHANDOKER A.H., KIMURA Y., ITO T. and PALANISWAMI M., Non-invasive determination of electromechanical time intervals of cardiac cycle using abdominal ECG and Doppler ultrasound signals from fetal hearts, Computers in Cardiology, Vol. 34, 2007, pp.657–660.
• [5] PETERS CH., TEN BROEKE E.D., ANDRIESSEN P. et al., Beat-to-beat detection of fetal heart rate: Doppler ultrasound cardiotocography compared to direct ECG cardiotocography in time and frequency domain, Physiological Measurement, Vol. 25, 2004, pp. 585–593.
• [6] PETERS M., CROWE J., PIÉRI J.F. et al., Monitoring the fetal heart non-invasively: a review of methods, Journal of Perinatal Medicine, Vol. 29, 2001, pp. 408–416.
• [7] ROJ D., FUCHS T., PRZYBYLA T. et al., The influence of window size of autocorrelation function on fetal heart rate variability measurement using the Doppler ultrasound signal, Journal of Medical Informatics and Technologies, Vol. 12, 2008, pp. 111–116.