Table 2.
Angiographically-, NIRS-IVUS-, and CCTA-derived plaque features
| Location of lesions(n = 105lesions) | |
|---|---|
| LAD artery, n (%) | 45 (42.9%) |
| LCX artery, n (%) | 27 (25.7%) |
| RCA artery, n (%) | 33 (31.4%) |
| Proximal lesion, n (%) | 52 (49.5%) |
| Mid lesion, n (%) | 38 (36.2%) |
| Distal lesion, n (%) | 13 (12.4%) |
| Far distal lesion, n (%) | 2 (1.9%) |
| Angiographic findings, NIRS-IVUS findings | |
| % diameter stenosis on QCA, (%, IQR) | 45 (33.5–53) |
| MaxLCBI4mm, (IQR) | 350 (221–484) |
| MaxLCBI4mm ≥ 400 | 46 (43.8%) |
| CCTA findings at maxLCBI4mm lumen site | |
| Duration of days between CT and PCI(days, IQR) | 4.0 (0–8.8) |
| Vessel area(mm2, IQR) | 13.7 (9.9–16.7) |
| Lumen area(mm2, IQR) | 4.9 (3.3–6.6) |
| Plaque area(mm2, IQR) | 8.3 (5.9–10.8) |
| Plaque density, (HU, IQR) | 41 (26.0–60.0) |
| % diameter stenosis, (%, IQR) | 41 (30–51) |
| Remodeling index, (IQR) | 1.0 (0.95–1.1) |
| Spotty calcification, n (%) | 28 (26.7%) |
| Napkin-ring sign, n (%) | 9 (8.6%) |
| Physiological measurements at the site of maxLCBI4mm | |
| ΔFFRCT, (IQR) | 0.05 (0.03–0.12) |
| ΔQFR, (IQR) | 0.04 (0.02–0.14) |
CCTA coronary computed tomography, CT computed tomography, FFRCT fractional flow reserve derived from computed tomography, IQR interquartile range, LAD left anterior descending, LCX left circumflex, LDL low-density lipoprotein, maxLCBI4mm maximum 4-mm lipid-core burden index, NIRS-IVUS near-infrared spectroscopy and intravascular ultrasound, PCI percutaneous coronary intervention, QFR quantitative flow reserve, RCA right coronary artery