OCT/QCA parameters and FFR value in lipid plaques compared with non-lipid plaques
| Parameter | Lipid plaque (n=37) | Non-lipid plaque (n=25) | p Value |
|---|---|---|---|
| OCT-derived parameters | |||
| MLA (mm2) | 1.80±0.88 | 1.93±0.89 | ns |
| MLD (mm) | 1.23±0.30 | 1.34±0.34 | ns |
| Reference diameter (mm) | 2.57±0.37 | 2.54±0.41 | ns |
| Area stenosis (%) | 71.2±7.5 | 68.2±8.3 | ns |
| Stenosis length (mm) | 7.94±6.33 | 5.47±3.56 | 0.052 |
| QCA-derived parameters | |||
| MLD (mm) | 1.21±0.30 | 1.16±0.41 | ns |
| Reference diameter (mm) | 2.56±0.62 | 2.41±0.61 | ns |
| Diameter stenosis (%) | 51.81±8.13 | 52.52±9.93 | ns |
| Stenosis length (mm) | 9.00±4.32 | 7.28±3.00 | 0.064 |
| FFR (value) | 0.763±0.129 | 0.820±0.114 | 0.071 |
The data are presented as mean±SD or n (%).
FFR, fractional flow reserve; MLA, minimal lumen area; MLD, minimal lumen diameter; OCT, optical coherence tomography; QCA, quantitative coronary angiography.