SIGNAL TO NOISE RATIO EVALUATION IN SIGNAL AVERAGED ECG BY DERIVATIVE DYNAMIC TIME WARPING AND PIECEWISE LINEAR APPROXIMATION

Roberto L. Avitia, Marco A. Reyna, Miguel E. Bravo, Lucio A. Cetto

Abstract

Signal Averaged Electrocardiography (SAECG) is a technique widely used as an alternative to improve signal to noise ratio (SNR), but sometimes patient’s physiology may alter the characteristics of quasi-steady heartbeats that are assumed in the averaging. This paper evaluates the noise as a parameter for measuring the alignment heartbeats by Derivative Dynamic Time Warping (DDTW) and using Piecewise Linear Approximation (PLA) as well. The records were taken from a group of healthy individuals and the results show that the number of heartbeats averaged necessary to improve the SNR is less than the traditional method.

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Paper Citation


in Harvard Style

L. Avitia R., A. Reyna M., E. Bravo M. and A. Cetto L. (2010). SIGNAL TO NOISE RATIO EVALUATION IN SIGNAL AVERAGED ECG BY DERIVATIVE DYNAMIC TIME WARPING AND PIECEWISE LINEAR APPROXIMATION . In Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010) ISBN 978-989-674-017-7, pages 201-205. DOI: 10.5220/0002748802010205


in Bibtex Style

@conference{biodevices10,
author={Roberto L. Avitia and Marco A. Reyna and Miguel E. Bravo and Lucio A. Cetto},
title={SIGNAL TO NOISE RATIO EVALUATION IN SIGNAL AVERAGED ECG BY DERIVATIVE DYNAMIC TIME WARPING AND PIECEWISE LINEAR APPROXIMATION },
booktitle={Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010)},
year={2010},
pages={201-205},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002748802010205},
isbn={978-989-674-017-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2010)
TI - SIGNAL TO NOISE RATIO EVALUATION IN SIGNAL AVERAGED ECG BY DERIVATIVE DYNAMIC TIME WARPING AND PIECEWISE LINEAR APPROXIMATION
SN - 978-989-674-017-7
AU - L. Avitia R.
AU - A. Reyna M.
AU - E. Bravo M.
AU - A. Cetto L.
PY - 2010
SP - 201
EP - 205
DO - 10.5220/0002748802010205