Doppler ultrasound technology for fetal heart rate monitoring: a review

Paul Hamelmann (Corresponding author), Rik Vullings, Alexander F. Kolen, Jan W.M. Bergmans, Judith O.E.H. van Laar, Piero Tortoli, Massimo Mischi

Onderzoeksoutput: Bijdrage aan tijdschriftArtikel recenserenAcademicpeer review

1 Citaat (Scopus)


Fetal well-being is commonly assessed by monitoring the fetal heart rate (fHR). In clinical practice, the de facto standard technology for fHR monitoring is based on the Doppler ultrasound (US). Continuous monitoring of the fHR before and during labor is performed using a US transducer fixed on the maternal abdomen. The continuous fHR monitoring, together with simultaneous monitoring of the uterine activity, is referred to as cardiotocography (CTG). In contrast, for intermittent measurements of the fHR, a handheld Doppler US transducer is typically used. In this article, the technology of Doppler US for continuous fHR monitoring and intermittent fHR measurements is described, with emphasis on fHR monitoring for CTG. Special attention is dedicated to the measurement environment, which includes the clinical setting in which fHR monitoring is commonly performed. In addition, to understand the signal content of acquired Doppler US signals, the anatomy and physiology of the fetal heart and the surrounding maternal abdomen are described. The challenges encountered in these measurements have led to different technological strategies, which are presented and critically discussed, with a focus on the US transducer geometry, Doppler signal processing, and fHR extraction methods.

Originele taal-2Engels
Pagina's (van-tot)226-238
Aantal pagina's13
TijdschriftIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Nummer van het tijdschrift2
StatusGepubliceerd - feb 2020

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