Comparison of global and regional myocardial strains in patients with heart failure with a preserved ejection fraction vs hypertension vs age-matched control

Figures

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  Fig. 1. Example illustration of speckle tracking analysis. At the end-systolic phase, endocardial and epicardial borders were manually selected on each short axis and long axis view. Myocardial segment is consist of six circumferential regions (anterior, anteroseptal, inferoseptal, inferior, infeolateral, anterolateral) and three longitudinal regions (basal, mid, and apical)

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  Fig. 2. Study flow. HFpEF, heart failure with preserved ejection fraction, ICM, ischemic cardiomyopathy; NICM, non-ischemic cardiomyopathy

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  Fig. 3. Distribution of global strain and strain rate among subgroups. CI, confidence interval; HFpEF, heart failure with preserved ejection fraction

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  Fig. 4. Comparison of global peak strain analysis among subgroups

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  Fig. 5. Correlation between two global strain (A) and strain rate (B). Longitudinal, circumferential and radial strain and strain rate were significantly correlated with each other (Longitudinal and circumferential, r = 0.78, p < 0.001; longitudinal and radial, r = 0.66, p < 0.001; radial and circumferential, r = 0.70, p < 0.001)

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  Fig. 6. Predictive performance of global peak strain (%) for the diagnosis of HFpEF. AUC, area under the curve; CI, confidence interval