Comput Math Methods Med - Fetal ECG extraction from abdominal signals: a review on suppression of fundamental power line interference component and its harmonics.

Tópicos

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Resumo

Interference of power line (PLI) (fundamental frequency and its harmonics) is usually present in biopotential measurements. Despite all countermeasures, the PLI still corrupts physiological signals, for example, electromyograms (EMG), electroencephalograms (EEG), and electrocardiograms (ECG). When analyzing the fetal ECG (fECG) recorded on the maternal abdomen, the PLI represents a particular strong noise component, being sometimes 10 times greater than the fECG signal, and thus impairing the extraction of any useful information regarding the fetal health state. Many signal processing methods for cancelling the PLI from biopotentials are available in the literature. In this review study, six different principles are analyzed and discussed, and their performance is evaluated on simulated data (three different scenarios), based on five quantitative performance indices.

Resumo Limpo

interfer power line pli fundament frequenc harmon usual present biopotenti measur despit countermeasur pli still corrupt physiolog signal exampl electromyogram emg electroencephalogram eeg electrocardiogram ecg analyz fetal ecg fecg record matern abdomen pli repres particular strong nois compon sometim time greater fecg signal thus impair extract use inform regard fetal health state mani signal process method cancel pli biopotenti avail literatur review studi six differ principl analyz discuss perform evalu simul data three differ scenario base five quantit perform indic

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