Table 4.
Comparison of Coronary Plaque Features Between Baseline and Follow‐Up CCTA: Subgroup Analysis With Regard to Different Types of Plaque
| Baseline | Follow‐Up | P Value | |
|---|---|---|---|
| Non‐calcified plaque (n=73) | |||
| Focal Agatston score | ··· | ··· | ··· |
| MLD, mm | 2.00±0.47 | 1.99±0.48 | 0.83 |
| Diameter stenosis, % | 47.00±15.00 | 43.00±18.00 | 0.18 |
| Total lesion length, mm | 8.50 [6.50–12.50] | 8.10 [6.30–12.30] | 0.51 |
| TPV, mm3 | 84.30 [45.50–181.00] | 82.20 [44.50–173.00] | 0.99 |
| Calcified PV, mm3 | ··· | ··· | ··· |
| No‐calcified PV, mm3 | 84.30 [45.50–181.00] | 82.20 [44.50–173.00] | 0.99 |
| LAP | 30 (41.00%) | 24 (32.90%) | 0.25 |
| LAP volume, mm3 | 0 [0–8.10] | 0 [0–5.40] | 0.64 |
| Napkin‐ring sign | 30 (41.10%) | 31 (42.50%) | 0.76 |
| Spotty calcification | 4 (5.50%) | 5 (6.80%) | 1.00 |
| Remodeling index | 1.08±0.17 | 1.09±0.17 | 0.85 |
| ΔCT‐FFR | 0.051±0.010 | 0.035±0.012 | 0.013 |
| Calcified plaque (n=54) | |||
| Focal Agatston score | 230.50 [135.00–382.00] | 232.50 [137.00–382.00] | 1.00 |
| MLD, mm | 1.99±0.56 | 2.00±0.55 | 0.97 |
| Diameter stenosis, % | 48.40±14.00 | 48.00±15.00 | 0.97 |
| Total lesion length, mm | 19.10 [8.20–27.10] | 17.80 [8.50–27.40] | 0.92 |
| TPV, mm3 | 100.45 [59.10–254.60] | 99.54 [58.10–255.10] | 0.88 |
| Calcified PV, mm3 | 100.45 [59.10–254.60] | 99.54 [58.1–255.10] | 0.88 |
| No‐calcified PV, mm3 | ··· | ··· | ··· |
| LAP | ··· | ··· | ··· |
| LAP volume, mm3 | ··· | ··· | ··· |
| Napkin‐ring sign | ··· | ··· | ··· |
| Spotty calcification | ··· | ··· | ··· |
| Remodeling index | 1.20±0.20 | 1.19±0.21 | 0.96 |
| ΔCT‐FFR | 0.048±0.011 | 0.045±0.012 | 0.84 |
| Mixed plaque (n=67) | |||
| Focal Agatston score | 96.00 [52.40–173.50] | 97.00 [52.50–177.20] | 0.95 |
| MLD, mm | 1.91±0.52 | 1.89±0.52 | 0.57 |
| Diameter stenosis, % | 58.00 [41.00–67.00] | 54.00 [40.00–68.00] | 0.92 |
| Total lesion length, mm | 11.90 [7.14–19.00] | 11.20 [6.95–17.80] | 0.92 |
| TPV, mm3 | 181.60 [51.90–353.10] | 178.60 [48.90–363.30] | 0.99 |
| Calcified PV, mm3 | 53.50 [20.00–115.40] | 54.60 [20.20–115.90] | 0.88 |
| No‐calcified PV, mm3 | 102.00 [31.00–197.60] | 101.30 [29.00–209.50] | 0.95 |
| LAP | 6 (9.00%) | 7 (10.40%) | 0.77 |
| LAP volume, mm3 | 0 [0–0] | 0 [0–0] | 0.79 |
| Napkin‐ring sign | 25 (37.30%) | 23 (34.30%) | 0.71 |
| Spotty calcification | 14 (20.90%) | 12 (17.90%) | 0.66 |
| Remodeling index | 1.11±0.21 | 1.11±0.20 | 0.98 |
| ΔCT‐FFR | 0.063±0.014 | 0.064±0.016 | 0.67 |
CCTA indicates coronary computed tomography angiography; CT, computed tomography; FFR, fractional flow reserve; LAP, Low attenuation plaque; MLD, minimal lumen diameter; PV, plaque volume; and TPV, total plaque volume.