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The synthesized vec...
The synthesized vectorcardiogram resembles the measured vectorcardiogram in patients with dyssynchronous heart failure
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Engels, E. B. (författare)
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Alshehri, S. (författare)
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van Deursen, C. J. M. (författare)
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- Wecke, L. (författare)
- Karolinska Institutet
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- Bergfeldt, Lennart, 1950 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine
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Vernooy, K. (författare)
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Prinzen, F. W. (författare)
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Journal of Electrocardiology. - : Elsevier BV. - 0022-0736 .- 1532-8430. ; 48:4, s. 586-592
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Abstract
Ämnesord
Stäng
- 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). 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. 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). 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. (C) 2015 Elsevier Inc. All rights reserved.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Nyckelord
- Vectorcardiography
- Kors method
- Electrical dyssynchrony
- Cardiac resynchronization therapy
- CARDIAC RESYNCHRONIZATION THERAPY
- BUNDLE-BRANCH BLOCK
- ELECTROCARDIOGRAM
- ARRHYTHMIAS
- MATRIX
- LEADS
- AREA
- ECG
- Cardiac & Cardiovascular Systems
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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