Fig. 4. Receiver operating characteristic curve of 3D-QCA variables in lesions with MLA < 4.0 mm2 for FFR < 0.80. (A) Minimal luminal diameter. (B) percent area stenosis. (C) minimal luminal area. (D) percent area stenosis. 3D-QCA, three-dimensional quantitative coronary angiography; FFR, fractional flow reserve; MLD, minimal luminal diameter; %DS, percent diameter stenosis; MLA, minimal luminal area; %AS, percent area stenosis; AUC, area under curve.
