Table 2.
Lesion Characteristics Stratified by Diameter Stenosis and FFR (849 lesions)
| Visually Nonsignificant Lesions QCA‐DS ≤50% | Visually Significant Lesions QCA‐DS >50% | |||||
|---|---|---|---|---|---|---|
| FFR>0.80 Concordantly Non‐Significant | FFR≤0.80 “Reverese Mismatch” | P Value | FFR>0.80 “Mismatch” | FFR≤0.80 Concordantly Significant | P Value | |
| n | 293 | 129 | 179 | 248 | ||
| Lesion location | ||||||
| RCA | 66 (22.5) | 13 (10.1) | <0.001 | 59 (33.0) | 37 (14.9) | <0.001 |
| LAD | 165 (56.3) | 113 (87.6) | 70 (39.1) | 162 (65.3) | ||
| Cx | 62 (21.2) | 3 (2.3) | 50 (27.9) | 49 (19.8) | ||
| ACS nonculprit | 32 (10.9) | 30 (23.3) | 0.002 | 33 (18.4) | 39 (15.7) | 0.513 |
| Infarction‐related vessel | 35 (12.7) | 14 (11.5) | 0.869 | 15 (8.7) | 20 (8.3) | 1.000 |
| FFR | 0.89 (0.85–0.93) | 0.76 (0.70–0.79) | <0.001 | 0.86 (0.83–0.90) | 0.73 (0.64–0.77) | <0.001 |
| CFR | 3.07 (2.20–4.18) | 2.79 (1.83–4.00) | 0.032 | 3.09 (2.22–4.30) | 2.16 (1.43–3.03) | <0.001 |
| IMR | 19.3 (12.8–30.5) | 15.0 (10.9–21.5) | <0.001 | 19.2 (12.2–28.3) | 17.5 (11.9–28.1) | 0.277 |
ACS indicates acute coronary syndrome; CFR, coronary flow reserve; Cx, left circumflex artery; FFR, fractional flow reserve; IMR, the index of microcirculatory resistance; LAD, left anterior descending artery; RCA, right coronary artery.