Figure 2

Proportion of High-Risk Plaque Characteristics Among 4 Groups, Classified by FFR and iFR. Proportions of number of HRPC (0, 1, 2, and ≥ 3) are compared according to the 4 groups classified by FFR and iFR with cutoff values of 0.80 and 0.89, respectively. Abbreviations HRPC, high-risk plaque characteristics; other abbreviations as in Fig. 1.