Comparison of vector velocity imaging and three-dimensional speckle tracking echocardiography for assessment of left ventricular longitudinal strain in hypertrophic cardiomyopathy

Badran, Hala Mahfouz; Faheem, Naglaa; Soliman, Mahmood; Hamdy, Mohamed; Yacoub, Magdi H.

doi:10.21542/gcsp.2019.6

Cited by 7 publications

(11 citation statements)

References 24 publications

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“…Longitudinal strain parameters were recorded after confirmation of best wall motion tracking (by operator visual assessment). 27 Then, from LV longitudinal systolic and diastolic strain rate curves for three views, we derived global strain rate (GSR) during systole (GSRs), early diastole (GSRe), late diastole (GSRa), and isovolumic relaxation period (GSRivr). Global values of strain and strain rate were obtained by averaging the segmental strain values (six segments in each of the three apical views, for a total of 18 segments).…”

Section: Methodsmentioning

confidence: 99%

“…VVI quantifies myocardial motion from bi‐dimensional clips by automatically tracking operator‐defined endocardial and epicardial contours to delineate inward and outward myocardial motion. Longitudinal strain parameters were recorded after confirmation of best wall motion tracking (by operator visual assessment) 27 . Then, from LV longitudinal systolic and diastolic strain rate curves for three views, we derived global strain rate (GSR) during systole (GSRs), early diastole (GSRe), late diastole (GSRa), and isovolumic relaxation period (GSRivr).…”

Section: Methodsmentioning

confidence: 99%

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Exercise‐induced B‐lines in heart failure with preserved ejection fraction occur along with diastolic function worsening

et al. 2021

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Aims Pulmonary congestion during exercise assessed by lung ultrasound predicts negative outcome in patients with heart failure with preserved ejection fraction (HFpEF). We aimed at assessing predictors of exercise-induced pulmonary B-lines in HFpEF patients. Methods and resultsEighty-one I-II NYHA class HFpEF patients (65.0 ± 8.2 y/o, 56.8% females) underwent standard and strain echocardiography, lung ultrasound, and natriuretic peptide assessment during supine exercise echocardiography (baseline and peak exercise). Peak values and their changes were compared in subgroups according to exercise lung congestion grading (peak B-lines >10 or ≤10). Exercise elicited significant changes for all echocardiographic parameters in both subgroups [39/81 (48.1%) with peak B-lines >10; 42/81 (51.9%) with B-lines ≤10]. Peak values and changes of E-wave (and its derived indices) were significantly higher in patients with >10 peak B-lines compared with those with ≤10 B-line (all P-values <0.03), showing significant correlation with peak B-lines for all parameters; concomitantly, global longitudinal strain (GLS) and global strain rate (GSR) during systole (GSRs), early (GSRe) and late (GSRa) diastole, and isovolumic relaxation (GSRivr) were reduced in patients with B-lines >10 (all P-values <0.05), showing a negative correlation with peak B-lines. By adjusted linear regression analysis, peak and change diastolic parameters (E-wave, E/e0, GSRivr, and E/GSRivr) and peak GLS were individually significantly associated with peak B-lines. By covariate-adjusted multivariable model, E/e0 and GSRa at peak exercise were retained as independent predictors of peak B-lines, with substantial goodness of fit of model (adjusted R 2 0.776). Conclusions In HFpEF, development of pulmonary congestion upon exercise is mostly concomitant with exercise-induced worsening of diastolic function.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Exercise‐induced B‐lines in heart failure with preserved ejection fraction occur along with diastolic function worsening

et al. 2021

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“…By comparison with TDI, the ability to track anatomic details was affected by the relatively low temporal resolution. 32 Due to ethical issues, participants did not undergo invasive or semi-invasive tests such as coronary angiography to diagnose or evaluate coronary artery disease.…”

Section: Discussionmentioning

confidence: 99%

Differentiation of the Left and Right Side Interventricular Septum Function in Healthy Subjects by Vector Velocity Imaging

Faghani

Nouri

Aghajankhah

et al. 2022

Anatolian J Cardiol

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Background : The present study aimed to assess and compare regional strain of the right and left sides of interventricular septum in healthy subjects using velocity vector imaging analysis due to the importance of interventricular septum and limited basic information about the exact function of the interventricular septum. Methods The present study was conducted on 40 healthy subjects. Echocardiography was performed in the apical 4-chamber view in the left lateral decubitus position. Image analysis was done offline with velocity vector imaging; the longitudinal strain and strain rate were calculated during 3 cardiac cycles. Strain-time and strain rate-time curves in basal, middle, and apical segments of the left and right sides of interventricular septum were recorded; peak values and time to peak strain were determined. Results There was no significant difference between the longitudinal strain in the right and left basal (−17.7 ± 5.10% vs. −18.2 ± 5.14%, P = .550), middle (−17.1 ± 4.53% vs. −17.9 ± 4.29%, P = .197) segments, strain rate of basal (−1.1 ± 0.36 1/s vs. −1.0 ± 0.36 1/s, P = .350), and middle (−1.0 ± 0.30 1/s vs. −1.1 ± 0.32 1/s, P =0.551) segments. However, there was a significant difference between the longitudinal strain (−22.2 ± 5.55% vs. −16.6 ± 4.45%, P < .001) and strain rate (−1.5 ± 0.46 1/s vs. −1.1 ± 0.33 1/s, P < .001) of the apical segment. Time to peak strain was significantly different only in the middle segment of interventricular septum (right side: 351.0 ±11.5 ms vs.left side: 344.4 ± 13.1 ms, P = .004). Conclusions The findings of this study suggest that the right and left function of the septum was comparable in the basal and middle segments of healthy subjects; this function was significantly different in the apical segments.

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“…In our study, the strain analysis was performed by VVI software 13,31,32 , which is a novel echocardiographic imaging technique based on speckle tracking. It incorporates speckle, mitral annular motion and endocardial border tracking and assesses innermost myocardial function adjacent to the endocardial border.…”

Section: Gls In Different Conditionsmentioning

confidence: 99%

Comparison of Left Ventricular Systolic Function Quantification Using Contrast-Enhanced and Non-Contrast Echocardiographic Images

Liang

Wang

Zhang

et al. 2020

Preprint

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Background: Left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS) are two important index for the quantification of left ventricular systolic function. With the help of ultrasound contrast agents, we can improve the definition of endocardial borders and allow the quantification of LVEF in patients with poor image quality. However, the feasibility of GLS measurements in contrast-enhanced images is still controversial. Our study aimed to explore the feasibility of GLS measured by velocity vector imaging (VVI) in contrast-enhanced images, compare the difference of measurements in contrast-enhanced and non-contrast images, and analyze the relation between LVEF and GLS in both conditions.Methods: A total of 133 patients with cancer, who were registered for transthoracic echocardiography as well as contrast-enhanced echocardiography were studied. LVEF was measured using the biplane modified Simpson’s rule and GLS was measured with offline VVI analysis of the three standard apical views in non-contrast and contrast-enhanced images respectively. Linear regression was performed to derive correlation coefficients between LVEF and GLS both in non-contrast and contrast-enhanced images.Results: GLS measurements in non-contrast images were discarded in 2/133 patients (1.5%), while in contrast-enhanced images were obtained in all patients. LVEF (64.12B7.47% vs. 66.25a8.61%, respectively; P < 0.01) and GLS (-20.99c4.67% vs. -23.40k4.58%, respectively; P < 0.01) were both significantly higher in the presence of contrast agents. A linear regression between LVEF and GLS in non-contrast images (r=0.627, P<0.001) was observed, as well as in contrast-enhanced images (r=0.649，P<0.001).Conclusion: GLS measured by VVI in contrast-enhanced echocardiography is a feasible and reliable index for the quantification of left ventricular systolic function, even in patients with poor image quality. Compared with the measurements in non-contrast images, both LVEF and GLS measurements are higher in the presence of contrast agents.

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Comparison of vector velocity imaging and three-dimensional speckle tracking echocardiography for assessment of left ventricular longitudinal strain in hypertrophic cardiomyopathy

Cited by 7 publications

References 24 publications

Exercise‐induced B‐lines in heart failure with preserved ejection fraction occur along with diastolic function worsening

Exercise‐induced B‐lines in heart failure with preserved ejection fraction occur along with diastolic function worsening

Differentiation of the Left and Right Side Interventricular Septum Function in Healthy Subjects by Vector Velocity Imaging

Comparison of Left Ventricular Systolic Function Quantification Using Contrast-Enhanced and Non-Contrast Echocardiographic Images

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