Personal computer-based method for detection of ventricular late potentials

Author

Peterec, D. ; Kiauta, T.

Author_Institution

Inst. of Physiol., Univ. of Ljubljana Med. Sch., Yugoslavia

fYear

1989

fDate

19-22 Sep 1989

Firstpage

411

Lastpage

414

Abstract

A personal computer-based method for detection of ventricular late potentials using a new algorithm was developed. Bipolar orthogonal leads are used to obtain a surface ECG (electrocardiographic) signal from the patient. The signal is amplified, bandpass filtered, and A/D (analog-to-digital) converted. Standard ECG leads are used for the generation of a trigger signal connected to the second channel of the A/D converter. Out of the digitized file, the sorting program selects the regions of interest of the signal (from 100 ms before the trigger signal to 400 ms after it) and discards the rest. Subsequently, it sorts all heart beats according to their frequencies. In this way, jitter is practically eliminated because, after averaging, ventricular late potentials can be detected in heart cycles of identical or similar length. Thus analysis of premature beats and of recordings of patients with absolute arrhythmia is made possible

Keywords

bioelectric potentials; computerised signal processing; electrocardiography; medical diagnostic computing; microcomputer applications; 100 ms; 400 ms; A/D converter; absolute arrhythmia patients; algorithm; amplified bandpass filtered signal; bipolar orthogonal leads; digitized file; heart cycles; jitter; personal computer-based method; premature beats; sorting program; surface ECG signal; ventricular late potentials detection; Data acquisition; Electrocardiography; Electrodes; Filters; Frequency; Heart beat; Jitter; Myocardium; Signal generators; Skin;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1989, Proceedings.

Conference_Location

Jerusalem

Print_ISBN

0-8186-2114-1

Type

conf

DOI

10.1109/CIC.1989.130581

Filename

130581