The Functional Severity Assessment of Coronary Stenosis Using Coronary Computed Tomography Angiography-Based Myocardial Mass at Risk and Minimal Lumen Diameter

Figure 3

Correlations between the fractional flow reserve (FFR) and the parameters of quantitative coronary angiography or cardiac computed tomography. The relationships were significant for minimal lumen diameter (r = 0.40, ; (a)), diameter stenosis (r = −0.35, ; (b)), and reference diameter (r = 0.22, ; (c)) but not significant for lesion length (; (d)) among the parameters of quantitative coronary angiography. Among the parameters of cardiac computed tomography, the myocardial mass at risk (MMAR) was significantly correlated with the FFR (r = −0.26, ; (e)), but the %MMAR was not (; (f)).

(a)

(b)

(c)

(d)

(e)

(f)