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Erschienen in: The International Journal of Cardiovascular Imaging 12/2018

17.07.2018 | Original Paper

Relationship between cardiovascular risk factors and myocardial strain values of both ventricles in asymptomatic Asian subjects: measurement using cardiovascular magnetic resonance tissue tracking

verfasst von: Ji-won Hwang, Min Jae Cha, Sung Mok Kim, Yiseul Kim, Yeon Hyeon Choe

Erschienen in: The International Journal of Cardiovascular Imaging | Ausgabe 12/2018

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Abstract

The purpose of this study was to evaluate the association between myocardial deformation parameters and cardiovascular risk factors in asymptomatic Asian subjects and to provide reproducibility for deformation parameters of both ventricles using cardiovascular magnetic resonance (CMR) tissue tracking (TT). We enrolled 129 asymptomatic healthy adults who underwent CMR and assessed the cardiovascular risk factors in all individuals. All subjects had normal left ventricular systolic function. Commercial software was used to derive myocardial deformation parameters of both ventricles from short-axis cine images and long-axis cine images with two-, three-, and four-chamber views. Linear regression analysis was performed for evaluation of the association with all strain parameters for each age and systolic blood pressure. Intra class correlation was also calculated in CMR-TT to determine interobserver variability. In all 129 patients, the strain values for the left ventricle (LV) were 48.90 ± 9.05 for radial strain (RS, %), − 22.30 ± 2.33 for circumferential strain (CS, %), and − 19.76 ± 2.22 for longitudinal strain (LS, %). The strain values for the right ventricle (RV) were 18.63 ± 6.52 for RS, − 10.60 ± 3.33 for CS, and − 25.06 ± 3.01 for LS. In all 129 patients (male, n = 105), all strain parameters of LV and RV was significantly different among males and females (all p values < 0.05). The LV strain parameters were significantly associated with age by univariate linear regression analysis: RS, beta = 0.219, p = 0.002; CS, beta = − 0.668, p = 0.014 (except for LS, beta = − 0.104, p = 0.720). With regard to hypertension, diabetes mellitus and dyslipidemia, the values of all strain parameters in both ventricles were not significantly different between individuals with or without risk factors. Inter-observer agreement for three strain variables of LV and RV was 0.915 and 0.715 by iota index, and intra-observer agreement of LV and RV was 0.955 and 0.959 by iota index. The strain parameters by CMR-TT showed an association with age and significant difference in gender, on the other hands, not significantly different between with or without of the other conventional cardiovascular risk factors. The reproducibility of three LV strain parameters was higher than that of the respective RV strain parameters.
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Metadaten
Titel
Relationship between cardiovascular risk factors and myocardial strain values of both ventricles in asymptomatic Asian subjects: measurement using cardiovascular magnetic resonance tissue tracking
verfasst von
Ji-won Hwang
Min Jae Cha
Sung Mok Kim
Yiseul Kim
Yeon Hyeon Choe
Publikationsdatum
17.07.2018
Verlag
Springer Netherlands
Erschienen in
The International Journal of Cardiovascular Imaging / Ausgabe 12/2018
Print ISSN: 1569-5794
Elektronische ISSN: 1875-8312
DOI
https://doi.org/10.1007/s10554-018-1414-1

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