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Two-dimensional myocardial elastography, an RF-based, speckle-tracking technique, uses 1-D cross-correlation and recorrelation methods in a 2-D search, and can estimate and image the 2-D transmural motion and deformation of the myocardium so as to characterize the cardiac function. Based on a 3-D finite-element (FE) canine left-ventricular model, a theoretical framework was previously developed by...
Echocardiography is the most prevalent imaging modalities in clinical cardiology. However, current diagnostic techniques rely on qualitative image analysis, ignoring the quantitative data inherent to this modality. We seek to develop a quantitative system for analyzing echocardiographic images. In this study, the performance of myocardial elastography was tested under motion-induced decorrelation...
In this paper, myocardial elastography (ME), a radio-frequency (RF) based speckle tracking technique, was employed in order to assess the contractility of a myocardium, and validated against tagged magnetic resonance imaging (tMRI) in vivo in normal as well as abnormal cases. Both RF ultrasound and tMRI frames were acquired in 2D short-axis (SA) views from two healthy subjects and one with a history...
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