Table 2. Intravascular Ultrasound Derived Virtual Histology characteristics (n=102).
| Variable | Non-VH-TCFA (n=94) | VH-TCFA (n=8) | P-value |
|---|---|---|---|
| Fibrous volume, mm3 | 70.5 (45.6) | 131.7 (51.5) | < 0.01 |
| Fibrolipidic volume, mm3 | 26.6 (24.1) | 47.0 (29.6) | 0.03 |
| Necrotic core volume, mm3 | 15.9 (14.3) | 29.1 (19.9) | 0.02 |
| Calcified volume, mm3 | 9.0 (6.6) | 13.2 (8.2) | 0.09 |
| Relative fibrous volume, % | 58 (7) | 61 (7) | 0.41 |
| Relative fibrolipidic volume, % | 21 (9) | 20 (6) | 0.81 |
| Relative necrotic core volume, % | 13 (7) | 13 (6) | 0.91 |
| Relative calcified volume, % | 8 (6) | 6 (3) | 0.70 |
| Lesion length, mm | 43.7 (18.6) | 54.4 (16.8) | 0.15 |
Categorical variables are presented as number and percentage. Absolute volume measurements are presented as mean (SD) mm3 while relative volume measurements are presented as percentage (SD). Comparison between groups were done using Wilcoxon rank sum test. A significance level of 0.05 was used. VH-TCFA, virtual histology-thin cap fibroatheroma.