Table 2 Angiographic characteristics and OCT findings according to MPV levels
|  | MPV<10.5 fL | MPV ≥10.5 fL | t/Z/χ2 | P | |
|---|---|---|---|---|---|
FCT (μm) |  | 0.11 (0.04,0.20) | 0.08 (0.04,0.12) | 1.642 | 0.101 |
Lipid arc, degree | Â | 100 (0,178) | 149 (0,229) | 1.192 | 0.233 |
Rupture (%) | No | 45 (95.7) | 32 (68.1) | 12.136 | < 0.001 |
Yes | 2 (4.3) | 15 (31.9) | Â | Â | |
Erosion (%) | No | 40 (85.1) | 35 (74.5) | 1.649 | 0.199 |
Yes | 7 (14.9) | 12 (25.5) | Â | Â | |
Macrophage accumulation | 0 | 27 (57.4) | 15 (31.9) | 7.718 | 0.057 |
1 | 10 (21.3) | 18 (38.3) | Â | Â | |
2 | 10 (21.3) | 12 (25.5) | Â | Â | |
3 | 0 (0.0) | 1 (2.1) | Â | Â | |
4 | 0 (0.0) | 1 (2.1) | Â | Â | |
Vasa vasorum | No | 44 (93.6) | 43 (91.5) | 0.000 | 1.000 |
Yes | 3 (6.4) | 4 (8.5) | Â | Â | |
Thrombus | No | 40 (85.1) | 26 (55.3) | 9.970 | 0.002 |
Yes | 7 (14.9) | 21 (44.7) | Â | Â | |
Calcified nodule | No | 45 (95.7) | 44 (93.6) | 0.000 | 1.000 |
Yes | 2 (4.3) | 3 (6.4) | Â | Â | |
Characteristic of plaque | Lipid | 31 (66.0) | 33 (70.2) | 2.196 | 0.333 |
Calcified | 4 (8.5) | 7 (14.9) | Â | Â | |
Fibrotic | 12 (25.5) | 7 (14.9) | Â | Â | |
TCFA | Â | 45 (95.7) | 39 (83.0) | 2.798 | 0.094 |
2 (4.3) | 8 (17.0) | Â | Â | ||
NLA (mm2) |  | 10.40 ± 3.38 | 11.09 ± 3.20 | 0.932 | 0.354 |
Diameter stenosis, % |  | 74.32 ± 15.81 | 75.72 ± 19.51 | 0.383 | 0.702 |
Lesion length |  | 9.13 ± 3.48 | 9.97 ± 3.94 | 1.101 | 0.274 |
Target vessel | LAD, n (%) | 35 (74.5) | 35 (74.5) | 0.750 | 0.687 |
LCX, n (%) | 5 (10.6) | 3 (6.4) | Â | Â | |
RCA, n (%) | 7 (14.9) | 9 (19.1) | Â | Â | |
Location of target plaque | Proximal | 34 (72.3) | 28 (59.6) | 2.310 | 0.276 |
Mid | 13 (27.7) | 18 (38.3) | Â | Â | |
Distal | 0 (0.0) | 1 (2.1) | Â | Â | |
Number of vascular lesions | 1 | 20 (42.6) | 25 (53.2) | 1.889 | 0.389 |
2 | 17 (36.2) | 11 (23.4) | Â | Â | |
3 | 10 (21.3) | 11 (23.4) | Â | Â | |