Diagnostic accuracy of global myocardial deformation indexes in coronary artery disease: a velocity vector imaging study

The aim of our study was to assess the diagnostic accuracy of a global longitudinal strain and strain rate (GLS, GLSR) and mean radial strain and strain rate (MRS, MRSR) of the left ventricle to predict multivessel disease. In 113 patients, who underwent coronary angiography, left ventricular deform...

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Veröffentlicht in:The International Journal of Cardiovascular Imaging 2012-12, Vol.28 (8), p.1931-1942
Hauptverfasser: Valocik, Gabriel, Valocikova, Ivana, Mitro, Peter, Fojtikova, Livia, Druzbacka, Ludmila, Kristofova, Beata, Juhas, Stanislav, Kolesar, Adrian, Sabol, Frantisek
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container_end_page 1942
container_issue 8
container_start_page 1931
container_title The International Journal of Cardiovascular Imaging
container_volume 28
creator Valocik, Gabriel
Valocikova, Ivana
Mitro, Peter
Fojtikova, Livia
Druzbacka, Ludmila
Kristofova, Beata
Juhas, Stanislav
Kolesar, Adrian
Sabol, Frantisek
description The aim of our study was to assess the diagnostic accuracy of a global longitudinal strain and strain rate (GLS, GLSR) and mean radial strain and strain rate (MRS, MRSR) of the left ventricle to predict multivessel disease. In 113 patients, who underwent coronary angiography, left ventricular deformation was analysed by speckle-tracking based velocity vector imaging. In three standard apical views strain and strain rate curves were generated corresponding with two opposite basal, mid, and apical segments. The negative peaks of systolic strain and strain rate from 18 curves were averaged as GLS and GLSR. Similarly, in short axis view 6 negative systolic peaks were averaged and considered as MRS and MRSR. Four subgroups were defined: (1) without significant coronary stenosis, 0-vessel disease (0VD), (2) single-vessel disease (1VD), (3) double-vessel disease (2VD), and (4) triple-vessel disease (3VD). In comparison with patients without significant coronary artery disease, all deformation indexes were significantly decreased in patients with 3VD. The left ventricular ejection fraction (LVEF) and wall motion score index (WMSI) showed lower significance level as deformation parameters. MRSR was the strongest predictor of multivessel disease. Receiver-operating characteristic curves (ROC) showed that MRSR had the highest diagnostic accuracy. Comparing ROC areas, MRSR had significantly higher diagnostic accuracy than LVEF and WMSI. The results of our study show that global deformation indexes have a good diagnostic accuracy in differentiating multivessel disease. MRSR tended to be better in identification of 3VD than traditional indexes of global and regional left ventricular function.
doi_str_mv 10.1007/s10554-012-0025-5
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In 113 patients, who underwent coronary angiography, left ventricular deformation was analysed by speckle-tracking based velocity vector imaging. In three standard apical views strain and strain rate curves were generated corresponding with two opposite basal, mid, and apical segments. The negative peaks of systolic strain and strain rate from 18 curves were averaged as GLS and GLSR. Similarly, in short axis view 6 negative systolic peaks were averaged and considered as MRS and MRSR. Four subgroups were defined: (1) without significant coronary stenosis, 0-vessel disease (0VD), (2) single-vessel disease (1VD), (3) double-vessel disease (2VD), and (4) triple-vessel disease (3VD). In comparison with patients without significant coronary artery disease, all deformation indexes were significantly decreased in patients with 3VD. The left ventricular ejection fraction (LVEF) and wall motion score index (WMSI) showed lower significance level as deformation parameters. MRSR was the strongest predictor of multivessel disease. Receiver-operating characteristic curves (ROC) showed that MRSR had the highest diagnostic accuracy. Comparing ROC areas, MRSR had significantly higher diagnostic accuracy than LVEF and WMSI. The results of our study show that global deformation indexes have a good diagnostic accuracy in differentiating multivessel disease. MRSR tended to be better in identification of 3VD than traditional indexes of global and regional left ventricular function.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><pmid>22327941</pmid><doi>10.1007/s10554-012-0025-5</doi><tpages>12</tpages></addata></record>
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1573-0743
1875-8312
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source MEDLINE; SpringerNature Journals
subjects Adult
Aged
Aged, 80 and over
Cardiac Imaging
Cardiology
Coronary Angiography
Coronary Artery Disease - diagnostic imaging
Coronary Artery Disease - physiopathology
Echocardiography, Doppler
Female
Humans
Image Interpretation, Computer-Assisted
Imaging
Linear Models
Logistic Models
Male
Medicine
Medicine & Public Health
Middle Aged
Multivariate Analysis
Myocardial Contraction
Observer Variation
Odds Ratio
Original Paper
Predictive Value of Tests
Radiology
Reproducibility of Results
Retrospective Studies
ROC Curve
Severity of Illness Index
Stroke Volume
Ventricular Function, Left
title Diagnostic accuracy of global myocardial deformation indexes in coronary artery disease: a velocity vector imaging study
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