Tissue Doppler Imaging is used to assess diastolic function and myocardial strain

Tissue Doppler Imaging (TDI) allows for the visualization of tissue movement typically preformed on the myocardium. This tool is typically used to assess levels of diastolic function of the left ventricle by placing a sample volume at the mitral valve annulus, where changes in tissue motion are often detected prior to changes in blood flow spectrums through the same valve. Tissue Doppler Mode may also be used to assess regional myocardial strain, for example between the endocardium and epicardium in a model of myocardial infarction. 

Tissue Doppler Mode on the mitral valve annulus, software analysis tools allow for various measurements to be preformed, here the early (E’) and atrial (A’) peak velocities are measured.

 This option is available for Vevo 770 Imaging System.