Conclusions
All in all, LV function is closely related to the stenosis degree of
TVD. In the early stage of TVD, when the overall left ventricular
systolic function is normal, the local left ventricular systolic
function has been damaged. As a new technique, 3D-STE can detect the
changes of myocardial function earlier in patients with TVD and
quantitatively evaluate the global LV function through multiple global
strain parameters. This may provide a more effective method for
monitoring the change of LV systolic strain and evaluating LV systolic
function of TVD without myocardial infarction.