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Research paper thumbnail of Two- and Three-dimensional Speckle-tracking Global Longitudinal Strain Are Strongly Correlated, in General but Not Per Segment, According to the 17-segment American Heart Association Model

PurposeTwo-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) en... more PurposeTwo-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) enable objective assessment of myocardial function. Here we examined the agreement between 2D and 3D STE measurement of global longitudinal strain (GLS) in patients with normal left ventricle, reduced ejection fraction, and cardiac pacing. MethodsOur analysis included 90 consecutive patients (59% males; average age: 73.2 ± 11.2 years) examined between May 2019–December 2020, with valid 2D and 3D loops for further speckle-tracking strain analysis. Linear regression and Pearson correlation were used to quantify the association between 2D and 3D GLS, and related segments using the 17-segment American Heart Association (AHA) model. Analyses were performed in the entire study group and subgroups. ResultsWe observed a strong correlation between 2D and 3D GLS measurements (R = 0.76, P < 0.001), which was higher in males (R = 0.78, P < 0.001) than females (R = 0.69, P < 0.001). Associated...

Research paper thumbnail of The Agreement of a Two- and a Three-Dimensional Speckle-Tracking Global Longitudinal Strain

Journal of Clinical Medicine

Background: Two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (ST... more Background: Two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) enables assessment of myocardial function. Here, we examined the agreement between 2D and 3D STE measurement of a global longitudinal strain (GLS) in patients with normal left ventricle, reduced ejection fraction, and cardiac pacing. Methods: Our analysis included 90 consecutive patients (59% males; average age: 73.2 ± 11.2 years) examined between May 2019–December 2020, with valid 2D and 3D loops for further speckle-tracking strain analysis. Linear regression, Pearson correlation, and a Bland–Altman plot were used to quantify the association between 2D and 3D GLS and related segments, using the 17-segment American Heart Association (AHA) model. Analyses were performed in the entire study group and subgroups. Intra- and inter-observer variability of 2D and 3D GLS measurement was also performed in all participants. Results: We observed a strong correlation between 2D and 3D GLS measure...

Research paper thumbnail of Two- and Three-dimensional Speckle-tracking Global Longitudinal Strain Are Strongly Correlated, in General but Not Per Segment, According to the 17-segment American Heart Association Model

PurposeTwo-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) en... more PurposeTwo-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) enable objective assessment of myocardial function. Here we examined the agreement between 2D and 3D STE measurement of global longitudinal strain (GLS) in patients with normal left ventricle, reduced ejection fraction, and cardiac pacing. MethodsOur analysis included 90 consecutive patients (59% males; average age: 73.2 ± 11.2 years) examined between May 2019–December 2020, with valid 2D and 3D loops for further speckle-tracking strain analysis. Linear regression and Pearson correlation were used to quantify the association between 2D and 3D GLS, and related segments using the 17-segment American Heart Association (AHA) model. Analyses were performed in the entire study group and subgroups. ResultsWe observed a strong correlation between 2D and 3D GLS measurements (R = 0.76, P < 0.001), which was higher in males (R = 0.78, P < 0.001) than females (R = 0.69, P < 0.001). Associated...

Research paper thumbnail of The Agreement of a Two- and a Three-Dimensional Speckle-Tracking Global Longitudinal Strain

Journal of Clinical Medicine

Background: Two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (ST... more Background: Two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography (STE) enables assessment of myocardial function. Here, we examined the agreement between 2D and 3D STE measurement of a global longitudinal strain (GLS) in patients with normal left ventricle, reduced ejection fraction, and cardiac pacing. Methods: Our analysis included 90 consecutive patients (59% males; average age: 73.2 ± 11.2 years) examined between May 2019–December 2020, with valid 2D and 3D loops for further speckle-tracking strain analysis. Linear regression, Pearson correlation, and a Bland–Altman plot were used to quantify the association between 2D and 3D GLS and related segments, using the 17-segment American Heart Association (AHA) model. Analyses were performed in the entire study group and subgroups. Intra- and inter-observer variability of 2D and 3D GLS measurement was also performed in all participants. Results: We observed a strong correlation between 2D and 3D GLS measure...

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