Table 2 Lesion characteristics and comparison between survivors and non-survivors
| Â | Study population | Survivors | Non-survivors | p |
|---|---|---|---|---|
n = 81 | n = 57 | n = 24 | ||
Vessel | ||||
 LAD (n, %) | 35 (43.2) | 24 (42.2) | 11 (45.8) | 0.558 |
 CX (n, %) | 13 (14.8) | 11 (19.3) | 1 (4.2) | 0.558 |
 RCA (n, %) | 30 (37.0) | 19 (33.3) | 11 (45.8) | 0.558 |
 RIM (n, %) | 4 (4.9) | 3 (5.3) | 1 (4.2) | 0.558 |
Stenosis characteristics | ||||
 Percent area stenosis (%) | 76.8 ± 8.0 | 82.0 ± 10.9 | 75.0 ± 15.6 | 0.536 |
 MLA (mm2) | 1.4 ± 0.6 | 1.4 ± 0.7 | 1.3 ± 0.5 | 0.704 |
 MLD (mm) | 1.1 ± 0.3 | 1.1 ± 0.3 | 1.0 ± 0.2 | 0.319 |
 Stenose lumen eccentricity (%) | 25.4 ± 11.9 | 23.4 ± 10.2 | 30.2 ± 14.5 | 0.051 |
Lesion morphology | ||||
 Lesion length (mm) | 15.7 ± 8.4 | 14.5 ± 8.1 | 18.7 ± 8.5 | 0.045 |
 Lipid plaque (n,%) | 44 (54.3) | 33 (57.9) | 11 (47.8) | 0.413 |
 Calcific plaque (n,%) | 52 (64.2) | 32 (56.1) | 20 (87.0) | 0.009 |
 Fibrous plaque (n,%) | 71 (87.7) | 50 (87.7) | 21 (91.3) | 0.646 |
 Presence of TCFA (n, %) | 30 (37.0) | 23 (40.4) | 7 (33.3) | 0.823 |
 Minimal FCT (µm) | 66.3 ± 26.5 | 66.2 ± 26.1 | 66.8 ± 28.8 | 0.945 |
 Mean FCT (µm) | 111.3 ± 29.3 | 108.4 ± 25.9 | 120.3 ± 38.1 | 0.244 |
 Lipid arc (°) | 147.6 ± 45.8 | 151.3 ± 45.8 | 136.1 ± 46.0 | 0.343 |
 Lipid volume index (°*mm) | 787.2 ± 477.0 | 824.9 ± 481.8 | 666.9 ± 462.1 | 0.344 |
 Presence of microchannels (n, %) | 37 (45.7) | 26 (46.4) | 11 (47.8) | 0.910 |
Calcification morphology | ||||
 Presence of microcalcifications (n, %) | 15 (18.5) | 11 (21.6) | 4 (16.7) | 0.621 |
 Number of microcalcifications | 0.3 ± 0.7 | 0.3 ± 0.7 | 0.3 ± 0.7 | 0.902 |
 Presence of spotty calcifications (n, %) | 60 (74.1) | 43 (84.3) | 17 (70.8) | 0.173 |
 Number of spotty calcifications | 2.1 ± 2.0 | 2.2 ± 2.1 | 1.8 ± 1.6 | 0.388 |
 Presence of macrocalcifications (n,%) | 58 (71.6) | 35 (68.6) | 23 (95.8) | 0.009 |
 Number of macrocalcifications | 1.5 ± 1.3 | 1.2 ± 1.0 | 2.3 ± 1.5 | < 0.001 |
 Total number of calcifications | 4.0 ± 2.7 | 3.7 ± 2.8 | 4.4 ± 2.4 | 0.310 |
 Mean calcium arc (°) | 79.4 ± 39.8 | 71.6 ± 33.7 | 95.9 ± 46.8 | 0.013 |
 Calcium length (mm) | 12.3 ± 8.3 | 10.7 ± 8.0 | 15.9 ± 8.3 | 0.010 |
 Calcium volume index (°*mm) | 1133.5 ± 1093.1 | 877.4 ± 908.5 | 1677.9 ± 1263.2 | 0.003 |
Plaque inflammation | ||||
 Presence of macrophages (n, %) | 31 (38.3) | 20 (37.7) | 11 (45.8) | 0.502 |
 Macrophage arc (°) | 15.1 ± 21.7 | 15.7 ± 23.4 | 13.7 ± 17.7 | 0.704 |
 Macrophage length (mm) | 0.8 ± 1.2 | 0.8 ± 1.3 | 0.6 ± 0.8 | 0.358 |
 Macrophage volume index (°*mm) | 39.5 ± 15.7 | 41.0 ± 77.8 | 20.5 ± 32.0 | 0.109 |