TABLE II.
Quantitative and Semi-Quantitative Assessment of Plaque
| STEMI (N = 30) | SAP (N = 37) | P-value | |
|---|---|---|---|
| Total frames analyzed (n) | 2717.00 | 2786.00 | 0.51 |
| Distal segment | 44.83 ± 29.95 | 39.38 ± 25.84 | 0.72 |
| Proximal segment | 45.73 ± 44.51 | 34.30 ± 37.01 | 0.34 |
| Total length (mm) | |||
| Distal segment | 8.97 ± 5.99 | 8.20 ± 5.44 | 0.72 |
| Proximal segment | 9.15 ± 8.90 | 6.86 ± 7.40 | 0.34 |
| Quantitative assessment (mm2) | |||
| Lumen area | 7.48 ± 2.80 | 6.85 ± 2.85 | 0.84 |
| Lumen diameter | 3.03 ± 0.59 | 2.83 ± 0.61 | 0.74 |
| Plaque characteristic (% of Total) | |||
| Calcified | 4.97 | 8.40 | 0.17 |
| Fibrotic | 47.13 | 42.68 | 0.40 |
| Lipidic | 14.89 | 10.59 | 0.20 |
| Normal | 27.35 | 34.78 | 0.23 |
| N/A | 5.66 | 3.55 | 0.22 |
| Vessel (%) | 0.35 | ||
| LAD | 43.33 | 54.05 | |
| LCX | 23.33 | 21.62 | |
| RCA | 33.33 | 24.32 | |
Values are given as n, %, or mean ± SD.
STEMI = ST elevation myocardium infarction; SAP = stable angina pectoris; N/A = non analyzable; ROI = region of interest; LAD = left anterior descendent; LCX = left circumflex; RCA = right coronary artery.