Measurement of QT variability by two-dimensional warping

Author

Zaunseder, S. ; Schmidt, Martin ; Malberg, Hagen ; Baumert, Mathias

Author_Institution

Tech. Univ. Dresden, Dresden, Germany

fYear

2014

fDate

25-28 May 2014

Firstpage

163

Lastpage

164

Abstract

This contribution presents a novel warping method, two-dimensional signal warping (2DSW), for tracking beat-to-beat changes in time intervals from electrocardiograms. To evaluate the efficiency of 2DSW to capture subtle changes in the QT interval we apply 2DSW to the Physionet QT database. It is shown that 2DSW allows highly accurate tracking of QRS-onset and T-end, which renders the method useful for future clinical applications, in particular beat-to-beat variability analysis of ECG features.

Keywords

bioelectric potentials; electrocardiography; medical signal processing; 2DSW; ECG features; QRS-onset; QT variability measurement; electrocardiograms; high accurate tracking; physionet QT database; time intervals; two-dimensional signal warping method; variability analysis; Algorithm design and analysis; Databases; Electrocardiography; Europe; Oscillators; Standards; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Cardiovascular Oscillations (ESGCO), 2014 8th Conference of the European Study Group on

Conference_Location

Trento

Type

conf

DOI

10.1109/ESGCO.2014.6847570

Filename

6847570

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=169989