Table 2.
Histomorphometric findings in the carotid arteriesa
| No. | Descriptive parameters | Vessel diameter (mm) | Luminal diameter (mm) | Maximum neointimal thickness (mm) | Neointimal area (mm²) | Stenosis (%) | Injury score points (0 to 3) | Inflammation score points (0 to 3) |
|---|---|---|---|---|---|---|---|---|
| Precise stent (n = 9) | Mean ± SD | 5.5 ± 0.5 | 4.4 ± 0.4 | 0.5 ± 0.2 | 8.3 ± 2.1 | 34 ± 6.9 | 0.36 ± 0.2 | 1.7 ± 0.6 |
| Maximum | 6.4 | 5.2 | 0.8 | 6.0 | 49 | 1 | 3 | |
| Minimum | 5.1 | 4.0 | 0.2 | 1.2 | 27 | 0 | 1.1 | |
| E-volution stent (n = 8) | Mean SD | 4.4 ± 0.9 | 3.4 ± 0.9 | 0.5 ± 0.1 | 6.3 ± 1.4 | 40.1 ± 10.2 | 0.7 ± 0.7 | 1.6 ± 0.9 |
| Maximum | 5.1 | 4.3 | 0.5 | 8.4 | 56.1 | 2 | 3 | |
| Minimum | 3.0 | 2.0 | 0.47 | 4.1 | 29.4 | 0 | 0.7 | |
| E-volution-Hep stent (n = 9) | Mean ± SD | 4.7 ± 0.5 | 3.8 ± 0.5 | 0.5 ± 0.1 | 6.3 ± 1.1 | 35 ± 7.6 | 0.7 ± 0.6 | 1.8 ± 0.9 |
| Maximum | 5.6 | 4.7 | 0.6 | 7.6 | 52.3 | 2 | 3 | |
| Minimum | 4.2 | 3.1 | 0.4 | 4.9 | 28.8 | 0 | 0.6 |
aNumber of carotid stents results related to serial stentings (2 stents/vessel), which was performed in five of the eight animals. Statistical analysis using nonparametric Kruskal–Wallis test, which is a one-way analysis of variance by ranks, showed no significant difference (p < 0.05)