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The synthesized vectorcardiogram resembles the measured vectorcardiogram in patients with dyssynchronous heart failure.
- Source :
-
Journal of electrocardiology [J Electrocardiol] 2015 Jul-Aug; Vol. 48 (4), pp. 586-92. Date of Electronic Publication: 2015 Apr 08. - Publication Year :
- 2015
-
Abstract
- Background: The use of vectorcardiography (VCG) has regained interest, however, original Frank-VCG equipment is rare. This study compares the measured VCGs with those synthesized from the 12-lead electrocardiogram (ECG) in patients with heart failure and conduction abnormalities, who are candidate for cardiac resynchronization therapy (CRT).<br />Methods: In 92 CRT candidates, Frank-VCG and 12-lead ECG were recorded before CRT implantation. The ECG was converted to a VCG using the Kors method (Kors-VCG) and the two methods were compared using correlation and Bland-Altman analyses.<br />Results: Variables calculated from the Frank- and Kors-VCG showed correlation coefficients between 0.77 and 0.90. There was a significant but small underestimation by the Kors-VCG method, relative bias ranging from -1.9% ± 4.6% (QRS-T angle) to -9.4% ± 20.8% (T area).<br />Conclusion: The present study shows that it is justified to use Kors-VCG calculations for VCG analysis, which enables retrospective VCG analysis of previously recorded ECGs in studies related to CRT.<br /> (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Subjects :
- Aged
Algorithms
Computer Simulation
Diagnosis, Computer-Assisted methods
Female
Heart Rate
Humans
Male
Reproducibility of Results
Sensitivity and Specificity
Electrocardiography methods
Heart Conduction System physiopathology
Heart Failure diagnosis
Heart Failure physiopathology
Models, Cardiovascular
Vectorcardiography methods
Subjects
Details
- Language :
- English
- ISSN :
- 1532-8430
- Volume :
- 48
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of electrocardiology
- Publication Type :
- Academic Journal
- Accession number :
- 25900820
- Full Text :
- https://doi.org/10.1016/j.jelectrocard.2015.04.001