Table 3. NIRS-IVUS findings.
| MVO (n=40) | No-MVO (n=80) | p-value | ||
| Plaque rupture | 26 (65) | 30 (38) | 0.004 | |
| Attenuation | 35 (88) | 63 (79) | 0.243 | |
| Maximum attenuation angle, ° | 194 (104-282) | 108 (54-185) | 0.002 | |
| Attenuation length, mm | 6.9 (4.0-11.2) | 4.6 (2.2-8.9) | 0.013 | |
| API, mm° | 900 (104-1,566) | 133 (2-822) | 0.003 | |
| Calcification | 31 (78) | 65 (81) | 0.628 | |
| MLA site | MLA, mm2 | 2.2 (1.9-2.9) | 2.2 (1.9-2.6) | 0.695 |
| P&M area, mm2 | 13.7 (10.6-16.0) | 12.7 (9.8-16.7) | 0.574 | |
| Plaque burden, % | 85 (82-88) | 85 (81-88) | 0.709 | |
| Lesion length, mm | 20 (16-26) | 18 (15-24) | 0.531 | |
| Remodelling index | 1.08 (0.98-1.28) | 1.03 (0.94-1.13) | 0.074 | |
| Positive remodelling, % | 23 (58) | 32 (40) | 0.070 | |
| MaxLCBI4 mm | 745 (522-853) | 515 (349-698) | <0.001 | |
| Lesion LCBI | 322 (190-458) | 261 (156-359) | 0.151 | |
| Values are presented as median (interquartile range) or number (%). API: attenuation index; IVUS: intravascular ultrasound; LCBI: lipid core burden index; MLA: minimum lumen area; MVO: microvascular obstruction; NIRS: near-infrared spectroscopy; P&M: plaque and media | ||||