An automated approach to beat-by-beat QT-interval analysis

Author

Sahambi, J.S. ; Tandon, S.N. ; Bhatt, R.K.P.

Author_Institution

Center for Biomed. Eng., Indian Inst. of Technol., Delhi, India

Volume

19

Issue

3

fYear

2000

Firstpage

97

Lastpage

101

Abstract

The present work attempts to resolve some of the problems encountered in QT interval analysis and to describe a new algorithm that uses wavelets to analyze the QT interval on a beat-by-beat basis. The QT interval is further segmented into its contributing factors to find the variability in the repolarization phase. The technique and the algorithm have been tested on control and disease data from the standard MIT ECG library to prove the reproducibility and accuracy of the system. The technique has been implemented on a PC DSP add-on card to do the analysis on a beat-by-beat basis

Keywords

diseases; electrocardiography; medical signal processing; wavelet transforms; PC DSP add-on card; accuracy; automated approach; beat-by-beat QT-interval analysis; beat-by-beat basis; control data; disease data; repolarization phase; reproducibility; standard MIT ECG library; sudden cardiac death precursors; wavelets; Algorithm design and analysis; Control systems; Digital signal processing; Diseases; Electrocardiography; Heart rate interval; Libraries; Reproducibility of results; System testing; Wavelet analysis;

fLanguage

English

Journal_Title

Engineering in Medicine and Biology Magazine, IEEE

Publisher

ieee

ISSN

0739-5175

Type

jour

DOI

10.1109/51.844387

Filename

844387