Table 5 Coronary angiographic characteristics and OCT findings according to OCT features of the plaques
|  | Group | Ruptured plaque | Nonrupture with TCFA | Nonrupture and non-TCFA | t/Z/χ2 | P |
|---|---|---|---|---|---|---|
Erosion (%) | No | 15 (88.2) | 5 (50.0) | 55 (82.1) | 5.465 | 0.065 |
Yes | 2 (11.8) | 5 (50.0) | 12 (17.9) | Â | Â | |
Macrophage accumulation | 0 | 3 (17.6) | 2 (20.0) | 37 (55.2) | 19.328 | 0.005 |
1 | 7 (41.2) | 3 (30.0) | 18 (26.9) | Â | Â | |
2 | 6 (35.3) | 4 (40.0) | 12 (17.9) | Â | Â | |
3 | 0 (0.0) | 1 (10.0) | 0 (0.0) | Â | Â | |
4 | 1 (5.9) | 0 (0.0) | 1 (1.5) | Â | Â | |
Vasa vasorum | No | 16 (94.1) | 8 (80.0) | 63 (94.0) | 2.596 | 0.261 |
Yes | 1 (5.9) | 2 (20.0) | 4 (6.0) | Â | Â | |
Thrombus | No | 4 (23.5) | 4 (40.0) | 58 (86.6) | 29.624 | < 0.001 |
Yes | 13 (76.5) | 6 (60.0) | 9 (13.4) | Â | Â | |
NLA (mm2) |  | 13.52 ± 3.18 | 10.46 ± 2.59 | 10.16 ± 3.14 | 6.332 | 0.003 |
Rate of stenosis |  | 81.12 ± 15.89 | 72.50 ± 16.54 | 73.85 ± 18.16 | 1.267 | 0.287 |
Lesion length |  | 10.21 ± 4.65 | 9.40 ± 3.37 | 9.40 ± 3.55 | 0.325 | 0.723 |
Calcified nodule | No | 17 (100.0) | 10 (100.0) | 62 (92.5) | 0.979 | 0.763 |
Yes | 0 (0.0) | 0 (0.0) | 5 (7.5) | Â | Â | |
Target vessel | LAD | 10 (58.8) | 8 (80.0) | 52 (77.6) | 3.396 | 0.458 |
LCX | 2 (11.8) | 1 (10.0) | 5 (7.5) | Â | Â | |
RCA | 5 (29.4) | 1 (10.0) | 10 (14.9) | Â | Â | |
Location of target plaque | Pro | 10 (58.8) | 7 (70.0) | 45 (67.2) | 4.296 | 0.439 |
Mid | 6 (35.3) | 3 (30.0) | 22 (32.8) | Â | Â | |
Distal | 1 (5.9) | 0 (0.0) | 0 (0.0) | Â | Â | |
Number of vascular lesions | 1 | 9 (52.9) | 5 (50.0) | 31 (46.3) | 0.411 | 0.982 |
2 | 5 (29.4) | 3 (30.0) | 20 (29.9) | Â | Â | |
3 | 3 (17.6) | 2 (20.0) | 16 (23.9) | Â | Â |