ArticleBMC cardiovascular disorders2026
Measuring left ventricular global longitudinal strain in different contrast-enhanced echocardiography modes: a feasibility study.
Article in BMC cardiovascular disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundLeft ventricular global longitudinal strain (LVGLS) is an important parameter to evaluate left ventricular (LV) systolic function, which is more sensitive and reproducible than left ventricular ejection fraction (LVEF). However, whether LVGLS can be accurately measured with ultrasound enhancing agent (UEA) remains controversial. The aim of this study was to verify the feasibility and reproducibility of LVGLS in different contrast-enhanced echocardiography (CE) modes.
methodsTwo-dimensional speckle tracking echocardiography (2D-STE) was used to measure LVGLS on 75 patients included in this study. Patients were divided into optimal group (n = 33) and suboptimal group (n = 42) according to image quality. LVGLS measurements were performed in 2D mode, left ventricular opacification (LVO) mode, and myocardial contrast echocardiography (MCE) mode. 2D mode LVGLS measurements of the optimal group were used as a reference standard. The comparisons among different modes of each group included Bland-Altman analysis, linear regression and intra-class correlation (ICC). 20 patients were randomly selected from each group to analyze the inter- and intra-observer variability.
resultsThe LVO and MCE modes of optimal group had similar LVGLS measurements with 2D mode (-14.30 ± 4.73%
conclusionsIt is feasible to measure LVGLS in different CE modes, even in patients with suboptimal acoustic windows, which can reduce the impact of image quality on LVGLS measurements.
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