Application of support vector machine for the detection of P- and T-waves in 12-lead electrocardiogram

Authors:
S. S. Mehta;N. S. Lingayat
Affiliations:
Department of Electrical Engineering, J. N. Vyas University, MBM Engineering College, Jodhpur 342001, Rajasthan, India;Department of Electrical Engineering, J. N. Vyas University, MBM Engineering College, Jodhpur 342001, Rajasthan, India
Venue:
Computer Methods and Programs in Biomedicine
Year:
2009

Citing 5
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Abstract

Electrocardiogram (ECG) is characterized by a recurrent wave sequence of P, QRS and T-wave associated with each beat. The performance of the computer-aided ECG analysis systems depends heavily upon the accurate and reliable detection of these component waves. This paper presents an efficient method for the detection of P- and T-waves in 12-lead ECG using support vector machine (SVM). Digital filtering techniques are used to remove power line interference and base line wander. SVM is used as a classifier for the detection of P- and T-waves. The algorithm is validated using original simultaneously recorded 12-lead ECG recordings from the standard CSE ECG database. Significant detection rate of 95.43% is achieved for P-wave detection and 96.89% for T-wave detection. The method successfully detects all kind of morphologies of P- and T-waves. The on-sets and off-sets of the detected P- and T-waves are found to be within the tolerance limits given in CSE library.