Research Article

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

Table 1

Characteristics of VLPs.

Ventricular late potentials (VLPs)

CausesAreas of myocardium with reduced conductivity
EffectsOnset of serious arrhythmias
Bandwidth40–300 Hz
Time locationEnd of QRS complex and initial part of ST segment
Duration<50 msec
Amplitude1–20  𝜇 V