A Method for Ventricular Late Potentials Detection Using Time-Frequency Representation and Wavelet Denoising

الملخص EN

This study proposes a method for ventricular late potentials (VLPs) detection using time-frequency representation and wavelet denoising in high-resolution electrocardiography (HRECG).

The analysis is performed both with the signal averaged electrocardiography (SAECG) and in real time.

A comparison between the temporal and the time-frequency analysis is also reported.

In the first analysis the standard parameters QRSd, LAS40, and RMS40 were used; in the second normalized energy in time-frequency domain was calculated.

The algorithm was tested adding artificial VLPs to real ECGs.