HEART-RATE ADAPTIVE MATCH FILTER BASED PROCEDURE FOR AUTOMATIC DETECTION OF T-WAVE ALTERNANS FROM 24-HOUR ECG RECORDINGS - Issues Related to Filter Implementation

Laura Burattini, Silvia Bini, Roberto Burattini

2010

Abstract

Twenty-four hour T-wave alternans (TWA) analysis is a promising approach for risk stratification, which still remains unpractical because TWA identification algorithms are complex and require long computation time (CT). The aim of the present study was to test the applicability to 24-hour ECG recordings of our heart-rate adaptive match filter (AMF) which allows TWA detection by submitting ECG data to a band-pass filter centered at the TWA fundamental frequency fTWA, equal to a half heart rate. Two implementations are possible: 1) the passing-band is adapted to a varying fTWA value (FA_AMF), and 2) the filter band is fixed while conditioning the ECG data (SA_AMF). Simulated ECG tracings, characterized by no TWA or by different kinds of TWA, and 24-hour ECG recordings from healthy subjects and coronary artery disease patients were used to identify the fastest of these two implementations. Our results yielded the conclusions that the CT of our AMF-based procedure is independent of the amount of TWA present in the tracing, but depends on ECG sample length and filter implementation. If filter-design tools are available while performing ECG analysis, the FA_AMF implementation is to be preferred because its CT is about one third of SA_AMF CT.

Paper Citation

in Harvard Style

Burattini L., Bini S. and Burattini R. (2010). HEART-RATE ADAPTIVE MATCH FILTER BASED PROCEDURE FOR AUTOMATIC DETECTION OF T-WAVE ALTERNANS FROM 24-HOUR ECG RECORDINGS - Issues Related to Filter Implementation . In Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010) ISBN 978-989-674-018-4, pages 401-408. DOI: 10.5220/0002694604010408

in Bibtex Style

@conference{biosignals10,
author={Laura Burattini and Silvia Bini and Roberto Burattini},
title={HEART-RATE ADAPTIVE MATCH FILTER BASED PROCEDURE FOR AUTOMATIC DETECTION OF T-WAVE ALTERNANS FROM 24-HOUR ECG RECORDINGS - Issues Related to Filter Implementation},
booktitle={Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010)},
year={2010},
pages={401-408},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002694604010408},
isbn={978-989-674-018-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010)
TI - HEART-RATE ADAPTIVE MATCH FILTER BASED PROCEDURE FOR AUTOMATIC DETECTION OF T-WAVE ALTERNANS FROM 24-HOUR ECG RECORDINGS - Issues Related to Filter Implementation
SN - 978-989-674-018-4
AU - Burattini L.
AU - Bini S.
AU - Burattini R.
PY - 2010
SP - 401
EP - 408
DO - 10.5220/0002694604010408