Key result
Fetal phonocardiography is a promising non-invasive method for continuous fetal monitoring, though it requires advanced signal extraction to overcome interference from various sources.
Why the study?
Although fetal phonocardiography is promising for continuous non-invasive fetal monitoring, it suffers from interference overlapping the desired signal in time and frequency domains.
This review summarizes state-of-the-art methods for fetal phonocardiography signal extraction and processing, highlighting remaining challenges and future research directions for non-invasive fetal monitoring.
May support non-invasive fetal monitoring research; leaves open prospective validation of signal extraction before clinical adoption.
Fetal phonocardiography (fPCG) is receiving attention as it is a promising method for continuous fetal monitoring due to its non-invasive and passive nature. However, it suffers from the interference from various sources, overlapping the desired signal in the time and frequency domains. This paper introduces the state-of-the-art methods used for fPCG signal extraction and processing, as well as means of detection and classification of various features defining fetal health state. It also provides an extensive summary of remaining challenges, along with the practical insights and suggestions for the future research directions.
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Kahánková et al. (2022) conducted a review in Fetal monitoring. Fetal phonocardiography (fPCG) was evaluated. Fetal phonocardiography is a promising non-invasive method for continuous fetal monitoring, though it requires advanced signal extraction to overcome interference from various sources.
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