Atrial activity estimation from atrial fibrillation ECGs by blind source extraction based on a conditional maximum likelihood approach.

Medical & Biological Engineering & Computing
Ronald PhlypoIgnace Lemahieu

Abstract

This work presents a spatial filtering method for the estimation of atrial fibrillation activity in the cutaneous electrocardiogram. A linear extraction filter is obtained by maximising the extractor output power on the significant spectral support of the signal of interest. An iterative procedure based on a quasi-maximum likelihood estimator is proposed to jointly estimate the significant spectral support and the extraction filter. Compared with a previously proposed spatio-temporal blind source separation method, our approach yields an improved atrial activity signal estimate as quantified by a higher spectral concentration of the extractor output. The proposed methodology can readily be adapted to signal extraction problems in other application domains.

References

Sep 1, 1995·Academic Radiology·Y Rudy
Mar 10, 2001·IEEE Transactions on Bio-medical Engineering·M Stridh, L Sörnmo
Feb 16, 2005·IEEE Transactions on Bio-medical Engineering·F Castells Associate
Oct 18, 2006·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Andreas BollmannLeif Sörnmo
Mar 13, 2008·IEEE Transactions on Neural Networks·Petr TichavskýEran Doron

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Citations

Dec 12, 2012·Computers in Biology and Medicine·Jorge Mateo, José Joaquín Rieta
Sep 17, 2013·Computers in Biology and Medicine·Felipe I DonosoAlejandro J Rojas

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