Algorithm for the automatic detection of JT interval and its variability at rest and exercise using Wavelet Transform

In this work, an algorithm based on Wavelet Transform (WT) is developed for detecting QRS complex, J point and peak and end of T wave. The algorithm has been validated using different databases provided by Physionet [1]. It is presented an application of the algorithm in the study of the Heart Rate Variability (HRV) and the JT interval is proposed as a more appropriate measure of ventricular repolarization of the heart than the QT interval [2].