. A 200% increase in strain measurement accuracy was observed compared to the conventional algorithms. Subsequently, we tested the method using a 53-subject clinical cohort (20 subjects diseased with cardiomyopathy, 33 healthy controls). Our method distinguished between normal and abnormal left ventricu...
The same reviewer interpreted video and digital images independently and at different times with the use of a standard report form to evaluate 40 items (eg, severity of stenosis or regurgitation, leaflet thickening, and calcification) as normal or mildly, moderately, or severely abnormal. ...
When comparing short-axis M-mode data obtained from the three sonographers using both methods of segmentation, the results were generally tightly correlated, suggesting good agreement between manual- and algorithm-based analyses of left ventricle echocardiograms (Fig.4a). The low r2values represented ...
a random rotation between −20 to 20 degrees and with adding a number sampled uniformly between −0.1 to 0.1 to image pixels (pixels values are normalized) to increase or decrease brightness of the image. Data augmentation results in improvement for all of the tasks; between 1–4% improvem...
A recent study using 2D STE post-hemodialysis has shown impaired LVEF derived by STE versus normal LVEF by conventional echocardiogram in children, providing fur- ther evidence of the sensitivity of STE [47]. Strain by STE or TDI has been shown in some pediatric transplant cohorts to be ...