Apr 20th, 2020High-Frequency High-Resolution EchocardiographyHF Doppler ultrasound is a novel technology for assessing regional myocardial function.High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart