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Ultrasound strain imaging has been proposed to quantitatively assess myocardial contractility. Cross-correlation based 2D speckle tracking (ST) and auto-correlation based Doppler tissue imaging (DTI) are competitive ultrasound techniques for this application. Unlike ST, DTI is limited by angle dependency and suffers from low signal-to-noise ratio because a high pulse repetition frequency (PRF) is...
Ultrasound strain and strain rate imaging have been proposed to detect myocardial muscle viability and contractility change. However, it's not easy to control experimental parameters and acquire high SNR data during in-vivo animal experiments. To address this, we performed 2D cardiac elasticity imaging on a well-controlled isolated retroperfused rabbit heart paced through the apex. The excitation-contraction...
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