A Singularity-analysis Approach to characterize Epicardial Electric Potential

Abstract : The cardiac electrical activity conforms a complex sys- tem, for which nonlinear signal-processing is required to characterize it properly. In this context, an analysis in terms of singularity exponents is shown to provide compact and meaningful descriptors of the structure and dynam- ics. In particular, singularity components reconstruct the epicardial electric potential maps of human atria, inverse- mapped from surface potentials; such approach describe sinus-rhythm dynamics as well as atrial flutter and atrial fibrillation. We present several example cases in which the key descriptors in the form of fast-slow dynamics point at the arrhythmogenic areas in the atria.
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https://hal.inria.fr/hal-00750003
Contributor : Oriol Pont <>
Submitted on : Monday, November 12, 2012 - 12:28:52 PM
Last modification on : Thursday, January 16, 2020 - 4:44:02 PM
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Oriol Pont, Hussein Yahia, Rémi Dubois, Michel Haïssaguerre. A Singularity-analysis Approach to characterize Epicardial Electric Potential. Computing in Cardiology, Sep 2012, Krakow, Poland. ⟨hal-00750003⟩

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