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Strain and strain rate imaging can serve as noninvasive tools for quantitative assessment of regional myocardial contractility. Because of the 3D nature of cardiac motion, a 3D motion estimation scheme must be applied in order to be able to measure the full myocardial. Several method has been proposed to estimated the 3D velocity vectors field, such as 3D speckle tracking and 3D Transverse Oscillation...
The elastic properties of human tissue can be evaluated through the study of mechanical wave propagation using highframe rate imaging and motion estimation. Methods such as block-matching or phase-based motion estimation are usually used to estimate the motion induced by the mechanical wave. These methods can be time consuming because of the processing involved and the need for specific types of averaging...
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