Key result
A method using time-frequency representation and wavelet denoising was proposed and tested for detecting ventricular late potentials in high-resolution electrocardiography.
A novel time-frequency representation and wavelet denoising method was developed for detecting ventricular late potentials in high-resolution ECGs.
May enhance VLP detection on HR-ECG; hypothesis-generating and requires prospective validation before clinical use.
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.
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Gadaleta et al. (2012) studied Ventricular late potentials. Time-frequency representation and wavelet denoising vs. Temporal analysis (standard parameters QRSd, LAS40, and RMS40) was evaluated on Detection of ventricular late potentials. A method using time-frequency representation and wavelet denoising was proposed and tested for detecting ventricular late potentials in high-resolution electrocardiography.
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