Computer modeling of cardiac repolarisation for the analysis of the electrocardiogram

Author

Bernardo, D. Di ; Murray, A.

Author_Institution

Med. Phys. Dept., Newcastle upon Tyne Univ., UK

fYear

2001

fDate

2001

Firstpage

1

Lastpage

4

Abstract

This paper describes the methods and techniques that were used to develop a computer model of left ventricular repolarisation, and the results obtained using the model to investigate cardiac repolarisation and its manifestation on the surface electrocardiogram. We showed that normal T-waves can be generated by the model for a normal repolarisation of the left ventricle, with a physiological value of dispersion of repolarisation of 20 ms. The time course of body potentials agrees with published experimental results. Increasing dispersion to a pathological value of 100 ms, T-waves became symmetric. The model was able to simulate normal U-waves correctly

Keywords

bioelectric potentials; electrocardiography; medical signal processing; polarisation; 100 ms; 20 ms; ECG analysis; T-waves; U-waves; body potentials; cardiac repolarisation; computer model; left ventricular repolarisation; pathological dispersion value; physiological dispersion value; surface electrocardiogram; symmetric. waves; Computational modeling; Conductivity; Electrocardiography; Hospitals; Medical diagnostic imaging; Pathology; Physics computing; Shape; Solid modeling; Torso;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 2001

Conference_Location

Rotterdam

ISSN

0276-6547

Print_ISBN

0-7803-7266-2

Type

conf

DOI

10.1109/CIC.2001.977576

Filename

977576