Table 1.
Baseline characteristics of included patients and lesions.
| OCT cohort | IVUS cohort | |
|---|---|---|
| Clinical and demographic characteristics | ||
| Patient No. | 79 | 47 |
| Age, years | 61.5 ± 9.7 | 63.5 ± 10.0 |
| Male | 46 (58.2) | 29 (61.7) |
| Body mass index, kg/m2 | 25.2 ± 3.6 | 25.1 ± 4.6 |
| Hypertension | 57 (72.2) | 34 (72.3) |
| Diabetes mellitus | 17 (21.5) | 12 (25.5) |
| Dyslipidemia | 16 (20.3) | 13 (27.7) |
| Smoking | 18 (22.8) | 11 (23.4) |
| Previous MI | 1 (1.3) | 1 (2.1) |
| Previous PCI | 7 (8.9) | 3 (6.4) |
| LVEF, % | 69.5 (66.0–74.0) | 69.1 (66.0–75.0) |
| Triglyceride, mmol/L | 1.4 (0.9–2.2) | 1.3 (1.0–2.1) |
| Total cholesterol, mmol/L | 4.2 (3.7–5.0) | 4.3 (3.4–4.9) |
| LDL cholesterol, mmol/L | 2.4 (1.9–3.1) | 2.4 (2.0–3.1) |
| HDL cholesterol, mmol/L | 1.2 (1.0–1.4) | 1.2 (1.0–1.4) |
| Symptoms | ||
| Stable angina | 26 (32.9) | 20 (42.6) |
| Unstable angina | 29 (36.7) | 25 (53.2) |
| NSTEMI | 24 (30.4) | 2 (4.2) |
| Medications | ||
| Aspirin | 23 (29.1) | 12 (25.5) |
| Statins | 20 (25.3) | 11 (23.4) |
| β-blockers | 12 (15.2) | 5 (10.6) |
| ACEIs/ARBs | 19 (24.1) | 15 (31.9) |
| Calcium channel blockers | 33 (41.8) | 15 (31.9) |
| Interrogated vessel characteristics | ||
| Lesion No. | 83 | 49 |
| Lesion location | ||
| LAD | 62 (74.7) | 39 (79.6) |
| LCX | 10 (12.0) | 3 (6.1) |
| RCA | 11 (13.3) | 7 (14.3) |
| 3D-QCA | ||
| Diameter stenosis, % | 40.4 (34.3–49.4) | 45.6 (37.5–48.4) |
| Lesion length, mm | 15.9 (11.4–22.6) | 20.3 (12.0–26.4) |
| MLD, mm | 1.6 (1.3–1.9) | 1.6 (1.5–1.9) |
| QFR | 0.88 (0.83–0.95) | 0.87 (0.82–0.93) |
Values are expressed as n (%) or mean ± standard deviation or median (interquartile range). ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor inhibitor; HDL, high-density lipoprotein; IVUS, intravascular ultrasound; LAD, left anterior descending artery; LCX, left circumflex artery; LDL, low-density lipoprotein; LVEF, left ventricular ejection fraction; MI, myocardial infarction; MLD, minimal lumen diameter; NSTEMI, non-ST-segment elevation myocardial infarction; OCT, optical coherence tomography; PCI, percutaneous coronary intervention; QCA, quantitative coronary angiography; QFR, quantitative flow ratio; RCA, right coronary artery.