Regional myocardial strain measurements from 4DCT in patients with normal LV function

Regional strain (RSCT) can be rapidly obtained from standard gated coronary CCTA protocols using 4DCT SQUEEZ processing. We estimate that 95% of normal LV end-systolic RSCT values will fall between −23% and −43%; therefore, we hypothesize that an RSCT value higher than −23% will indicate a hypokinetic segment in the human heart.