Key result
An algorithm for the automatic compensation of deterministic time offsets in multichannel maternal abdominal fetal ECG sensing was proposed as a preprocessing block for spatio-temporal filtering.
The proposed algorithm compensates for interchannel time offsets in multichannel maternal abdominal sensing, potentially improving the extraction of fetal ECG signals and heart rate determination.
Answers are grounded in this paper and cite their sources.
May support fetal ECG preprocessing research; leaves open prospective clinical validation before practice change.
Noninvasive fetal electrocardiogram (FECG) through multichannel maternal abdominal sensing requires a suitable signal processing to enhance the signal-to-noise ratio and produce a single FECG signal from which parameters of interest, such as fetal heart rate, can be determined. Several processing techniques have been presented in the literature, which can benefit from the number of channels involved in the processing. Among these, the recently presented spatio-temporal filtering (STF) performs a weighted sum of QRS complexes to produce the enhanced FECG signal, whose weighting coefficients are calculated on the basis of the quality of synchronization among different channels. After analyzing clinical FECG signals and proving that a deterministic time offset can affect abdominal FECG channels, this paper proposes an algorithm for the automatic compensation of such systematic effect, as a preprocessing block of STF-like techniques.
No takes yet. Share an insight, caveat, or question.
Melillo et al. (2014) studied Fetal electrocardiogram (FECG) sensing. Algorithm for automatic compensation of interchannel time offsets was evaluated. An algorithm for the automatic compensation of deterministic time offsets in multichannel maternal abdominal fetal ECG sensing was proposed as a preprocessing block for spatio-temporal filtering.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: