Table III. Histopathological characteristics of stented porcine femoral arteries.
| Characteristics | Sham | Matrix | PAE/matrix |
|---|---|---|---|
| Number of arteries, n | 6 | 5a | 6 |
| Intima area (mm2) | 6.2 ± 0.5 | 4.4 ± 0.5b | 3.3 ± 0.4b |
| Neointimal thickness (mm) | 0.40 ± 0.03 | 0.29 ± 0.04 | 0.20 ± 0.02b |
| Lumen area (mm2) | 16.1 ± 0.9 | 17.1 ± 1.0 | 20.43 ± 0.70b |
| Lumen/artery ratio | 0.65 ± 0.02 | 0.72 ± 0.03 | 0.77 ± 0.02b |
| Stent diameter (mm)c | 5.5 ± 0.13 | 5.4 ± 0.07 | 5.6 ± 0.04 |
| % Occlusiond | 28 ± 2.1 | 21 ± 2.8 | 14 ± 1.8b |
PAE, Porcine aortic endothelial cells.
a
Right femoral artery of one control matrix animal removed from data analysis due to excessive procedural injury and subsequent intimal formation (complete occlusion).
b
P < .05 compared with sham.
c
Stent diameter (Sd) = 2 × √(Sa/π).
d
% Occlusion = (I/I + L) × 100.