Table 2. QCA, IVUS, and FFR measurements in 175 lesions.
| Measurements | Data |
|---|---|
| Vessel | |
| Left anterior descending artery | 150 (86%) |
| Left circumflex artery | 7 (4%) |
| Right coronary artery | 18 (10%) |
| 2D-QCA | |
| Diameter stenosis, % | 53.5±13.30 |
| Minimum lumen diameter, mm | 1.5±0.5 |
| Reference vessel diameter, mm | 3.2±0.6 |
| Lesion length, mm | 21.9±11.1 |
| 3D-QCA | |
| Minimum lumen area, mm2 | 2.78±1.23 |
| Reference vessel area, mm2 | 8.04±3.72 |
| Lesion length, mm | 18.08±8.13 |
| Diameter stenosis, % | 47.6±12.50 |
| Percent area stenosis, % | 55.56±14 |
| IVUS | |
| Minimum lumen area, mm2 | 3.44±1.4 |
| EEM area at MLA site, mm2 | 11.81±3.77 |
| Plaque burden, % | 69±11 |
| Proximal reference lumen area, mm2 | 12.19±11.12 |
| Proximal reference EEM area, mm2 | 16.21±3.67 |
| Distal reference lumen area, mm2 | 8.49±3.41 |
| Distal reference EEM area, mm2 | 11.83±4.25 |
| Lesion length, mm | 23.42±11.23 |
| FFR | |
| Pre-adenosine | 0.92±0.05 |
| Post-adenosine | 0.81±0.07 |
QCA, quantitative coronary angiography; MLA, minimum lumen area; IVUS, intravascular ultrasound; FFR, fractional flow reserve.