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BackgroundThree‐dimensional echocardiography (3DE) is a promising method for strain determination; however, there are temporal resolution concerns. This study aims to evaluate the feasibility and accuracy of 3DE on longitudinal and circumferential strain (LS, CS) determination and infarction detection under variable frame rates (FR) and “heart rates” (stroke rates [SR]) conditions.
MethodsLatex balloons...
ObjectiveQuantitative left ventricular mass (LVM) as well as regional strain values may be obtained from full‐volume real time 3D echocardiography data via semi‐automated feature tracking and represent indices of heart function, both in health and disease.
MethodsFresh adult porcine and ovine hearts were passively pumped to simulate normal cardiac motion at stroke volumes (SVs) varying from 30 to...
Strain determination in fetal hearts is essential but conventional methods do not provide opportunities for orthogonal strain analysis and require the use of EKG-gating. A new non-gated 4D echocardiography method was tested for accuracy in strain computation. Fifteen rabbit hearts were studied. Each heart was mounted in a water tank to facilitate ultrasound scanning, connected to a calibrated pump...
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