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Detection of ventricular tachycardia risk by means of Wigner Distribution Interference Terms from the high resolution ECG

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2 Author(s)
Reyna, M.A. ; Univ. Politecnica de Catalunya, Barcelona, Spain ; Jane, R.

The majority of methods to detect tachycardia risk are aimed to analyze late potentials, as an indicator of sudden cardiac death. However, the majority of these methods present low predictive values. Certainly Wigner Distribution's Interference Terms are considered as troublesome artifacts, because they overlap several signal terms of the analyzed signal over the Time-Frequency Plane. Nevertheless, these interference terms can be used to analyze some kind of multicomponent signals, like signal averaged electrocardiograms. This paper proposes to quantify the Wigner Distribution's Interference Terms into the QRS complex of the Signal Averaged Electrocardiogram, to be used as a non invasive risk factor to predict Ventricular Tachycardia in Post Myocardial Infarcted patients

Published in:

Computers in Cardiology 1997

Date of Conference:

7-10 Sep 1997