Myocardial strain analysis of the right ventricle: comparison of different cardiovascular magnetic resonance and echocardiographic techniques

Journal of Cardiovascular Magnetic Resonance

Davide Genovese¹  Jennifer Erley²  Sebastian Kelle²  Paulius Bucius²  Radu Tanacli²  Natalie Tapaskar³  Keigo Kawaji³  Amit R. Patel³  Nina Rashedi³  Ilya Karagodin³  Victor Mor-Avi³  Roberto M. Lang³ 

[1] Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua;Department of Internal Medicine / Cardiology, German Heart Center;Department of Medicine, University of Chicago Medical Center;

关键词: Cardiovascular magnetic resonance;    Speckle-tracking echocardiography;    Right-ventricular function;   

DOI  :  10.1186/s12968-020-00647-7

来源: DOAJ

【 摘 要 】

Abstract Background Right ventricular (RV) strain is a useful predictor of prognosis in various cardiovascular diseases, including those traditionally believed to impact only the left ventricle. We aimed to determine inter-modality and inter-technique agreement in RV longitudinal strain (LS) measurements between currently available cardiovascular magnetic resonance (CMR) and echocardiographic techniques, as well as their reproducibility and the impact of layer-specific strain measurements. Methods RV-LS was determined in 62 patients using 2D speckle tracking echocardiography (STE, Epsilon) and two CMR techniques: feature tracking (FT) and strain-encoding (SENC), and in 17 healthy subjects using FT and SENC only. Measurements included global and free-wall LS (GLS, FWLS). Inter-technique agreement was assessed using linear regression and Bland-Altman analysis. Reproducibility was quantified using intraclass correlation (ICC) and coefficients of variation (CoV). Results We found similar moderate agreement between both CMR techniques and STE in patients: r = 0.57–0.63 for SENC; r = 0.50–0.62 for FT. The correlation between SENC and STE was better for GLS (r = 0.63) than for FWLS (r = 0.57). Conversely, the correlation between FT and STE was higher for FWLS (r = 0.60–0.62) than GLS (r = 0.50–0.54). FT-midmyocardial strain correlated better with SENC and STE than FT-subendocardial strain. The agreement between SENC and FT was fair (r = 0.36–0.41, bias: − 6.4 to − 10.4%) in the entire study group. All techniques except FT showed excellent reproducibility (ICC: 0.62–0.96, CoV: 0.04–0.30). Conclusions We found only moderate inter-modality agreement with STE in RV-LS for both FT and SENC and poor agreement when comparing between the CMR techniques. Different modalities and techniques should not be used interchangeably to determine and monitor RV strain.

【 授权许可】

Unknown