Table 1. Baseline clinical characteristics and vessel characteristics according to CAG, FFR, and IVUS.
| Parameter | Number of participants (n=31) |
|---|---|
| Age (y) | 66±10 |
| Male | 71% [22] |
| Weight (kg) | 69±12 |
| Height (cm) | 165±10 |
| BMI (kg/m2) | 25±4 |
| Cardiovascular risk factors | |
| Systolic blood pressure (mm Hg) | 129±17 |
| Diastolic blood pressure (mm Hg) | 71±11 |
| Angina pectoris | 29% [9] |
| Diabetes | 32% [10] |
| Hypertension | 74% [23] |
| Hyperlipidemia | 9% [3] |
| Vessel location,% [n] | |
| LAD | 78% [25] |
| LCX | 3% [1] |
| RCA | 19% [6] |
| Invasive CAG and FFR,% [n] | |
| Stenosis degree <50% | 84% [27] |
| Stenosis degree ≥50% | 16% [5] |
| FFR ≤0.8 | 44% [14] |
| IVUS analysis | |
| Minimum lumen diameter (mm) | 1.82±0.35 |
| Maximum lumen diameter (mm) | 2.19±0.47 |
| Minimum lumen area (mm2) | 3.44±1.46 |
| Minimum EEM diameter (mm) | 3.59±0.64 |
| Maximum EEM diameter (mm) | 4.07±0.58 |
| EEM CSA (mm2) | 12.07±3.56 |
| Plaque burden (%) | 71±9 |
FFR, fractional flow reserve; IVUS, intravascular ultrasound; CAG, coronary angiography; BMI, body mass index; LAD, left anterior descending; LCX, left circumflex artery; RCA, right coronary artery; EEM, external elastic membrane; CSA, cross-sectional area.