Comput Methods Programs Biomed - Application of spatio-temporal filtering to fetal electrocardiogram enhancement.

Tópicos

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Resumo

In this paper we propose a new structure of the instrumentation for electrocardiographic fetal monitoring. We apply a single-channel approach to maternal electrocardiogram suppression in the recorded four abdominal bioelectric signals. Then we exploit spatial and temporal properties of the extracted four-channel fetal electrocardiogram to construct a new channel with higher signal-to-noise ratio. Finally, we perform detection of fetal QRS complexes. The proposed approach is investigated with the help of the constructed database of the maternal abdominal signals. During the detection tests, the spatio-temporal filtering allowed us to decrease significantly the number of the detection errors of different detectors applied. Moreover, we present visually that even if the fetal QRS complexes are buried in noise, the spatio-temporal filtering can produce the signal with the discernible ones.

Resumo Limpo

paper propos new structur instrument electrocardiograph fetal monitor appli singlechannel approach matern electrocardiogram suppress record four abdomin bioelectr signal exploit spatial tempor properti extract fourchannel fetal electrocardiogram construct new channel higher signaltonois ratio final perform detect fetal qrs complex propos approach investig help construct databas matern abdomin signal detect test spatiotempor filter allow us decreas signific number detect error differ detector appli moreov present visual even fetal qrs complex buri nois spatiotempor filter can produc signal discern one

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