Left Ventricular Global Strain Analysis by Two-Dimensional Speckle-Tracking Echocardiography: The Learning Curve

2017 ◽  
Vol 30 (11) ◽  
pp. 1081-1090 ◽  
Author(s):  
Jonathan Chan ◽  
Kenji Shiino ◽  
Nchafatso G. Obonyo ◽  
Joseph Hanna ◽  
Robert Chamberlain ◽  
...  
Keyword(s):  
Learning Curve ◽  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Global Strain

Evaluation of left ventricular systolic functions in two-dimensional speckle-tracking echocardiography in children with chronic renal failure

2020 ◽  
pp. 1-8
Author(s):  
Ozgur Kizilca ◽  
Derya Ozmen ◽  
Tulay Demircan ◽  
Nuh Yilmaz ◽  
Mustafa Kir ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Patient Group ◽  
Left Ventricular Dysfunction ◽  
Speckle Tracking ◽  
Ventricular Dysfunction ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Global Strain

Abstract Background and aim: Chronic kidney disease may lead to left ventricular dysfunction. Early detection of cardiovascular disease in children with chronic kidney disease is essential to prevent cardiovascular morbidity and mortality in early adulthood. This study aimed to document the dysfunction using methods such as two-dimensional speckle-tracking echocardiography in the early stage. Methods: A total of 34 patients diagnosed with chronic kidney disease (mean age ± standard deviation, 10.5 ± 4.1 years) and 37 sex- and age-matched (mean age 9.8 ± 4.2 years) healthy controls were studied. The results of the two groups were compared along with those of the published studies. Results: The echocardiography measurements had no significant difference in the end-diastolic and end-systolic diameter values of left ventricular, ejection fraction, shortening fraction, mitral E value, mitral A value, and E/A ratio between the groups. Pulmonary artery systolic and diastolic pressure and left ventricular mass index were significantly higher in the patient group (p < 0.01). The longitudinal global strain values in the apical four-chamber, three-chamber, and two-chamber views and the total global strain values were significantly lower in the patients (p < 0.01). The circumferential global strain values in the apical, mid, basal, and total global strain were lower in the patient group, but this difference was statistically significant in the apical global and total global strain values (p < 0.05). Conclusions: Speckle-tracking echocardiography might help identify subclinical left ventricular dysfunction in patients with chronic kidney disease with unremarkable conventional echocardiography.

scholarly journals Direct comparison of multilayer left ventricular global longitudinal strain using CMR feature tracking and speckle tracking echocardiography

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Saikrishna Ananthapadmanabhan ◽  
Giau Vo ◽  
Tuan Nguyen ◽  
Hany Dimitri ◽  
James Otton
Keyword(s):  
Feature Tracking ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Imaging Modality ◽  
Global Longitudinal Strain ◽  
Intraclass Correlation ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Multilayer Strain

Abstract Background Cardiac magnetic resonance feature tracking (CMR-FT) and speckle tracking echocardiography (STE) are well-established strain imaging modalities. Multilayer strain measurement permits independent assessment of endocardial and epicardial strain. This novel and layer specific approach to evaluating myocardial deformation parameters may provide greater insight into cardiac contractility when compared to whole-layer strain analysis. The aim of this study is to validate CMR-FT as a tool for multilayer strain analysis by providing a direct comparison between multilayer global longitudinal strain (GLS) values between CMR-FT and STE. Methods We studied 100 patients who had an acute myocardial infarction (AMI), who underwent CMR imaging and echocardiogram at baseline and follow-up (48 ± 13 days). Dedicated tissue tracking software was used to analyse single- and multi-layer GLS values for CMR-FT and STE. Results Correlation coefficients for CMR-FT and STE were 0.685, 0.687, and 0.660 for endocardial, epicardial, and whole-layer GLS respectively (all p < 0.001). Bland Altman analysis showed good inter-modality agreement with minimal bias. The absolute limits of agreement in our study were 6.4, 5.9, and 5.5 for endocardial, whole-layer, and epicardial GLS respectively. Absolute biases were 1.79, 0.80, and 0.98 respectively. Intraclass correlation coefficient (ICC) values showed moderate agreement with values of 0.626, 0.632, and 0.671 respectively (all p < 0.001). Conclusion There is good inter-modality agreement between CMR-FT and STE for whole-layer, endocardial, and epicardial GLS, and although values should not be used interchangeably our study demonstrates that CMR-FT is a viable imaging modality for multilayer strain

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