Geometrical aspects of the inter-individual variability of multilead ECG recordings

Author

Hoekema, R. ; Uijen, G.J.H. ; van Oosterom, A.

Author_Institution

Nijmegen Univ., Netherlands

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

499

Lastpage

502

Abstract

The ECG as measured from healthy subjects shows considerable inter-individual variability. This variability is caused by geometrical, as well as by physiological factors. A correction method for the variability due to the geometrical causes is proposed. In this method, the electrical heart activity is computed from the ECG in a realistic geometrical model. Subsequently, the electrical heart activity is transferred to a standard geometry and the resulting ECG is computed. In an evaluation study using simulated ECG data the inter-individual relative variability (RV) of the multilead ECG data was reduced from 0.40 to 0.06. Applied to measured ECG data so far no reduction could be obtained

Keywords

biomedical electrodes; electrocardiography; medical signal processing; physiological models; correction method; electrical heart activity; geometrical aspects; healthy subjects; inter-individual relative variability; inter-individual variability; multilead ECG recordings; physiological factors; realistic geometrical model; simulated ECG data; standard geometry; Computational geometry; Computational modeling; Distributed computing; Electrocardiography; Heart; Laplace equations; Lungs; Magnetic materials; Solid modeling; Torso;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1999

Conference_Location

Hannover

ISSN

0276-6547

Print_ISBN

0-7803-5614-4

Type

conf

DOI

10.1109/CIC.1999.826017

Filename

826017