Table 2. Histopathological scores and Hounsfield unit (HU) values.
| Normal control (n=10) | FIP (n=6) | FIP+saline (n=7) | FIP+sulfasalazine (n=9) | |
|---|---|---|---|---|
| AC | 0.2±0.1 | 3.4±0.2** | 3.4±0.2** | 1.1±0.2## |
| H | 0.4±0.1 | 1.6±0.2* | 1.8±0.3** | 0.8±0.3## |
| AL | 0.3±0.2 | 2.2±0.3** | 2.5±0.2** | 1.1±0.3## |
| PE | 0.1±0.1 | 3.5±0.3** | 3.2±0.4** | 0.9±0.1## |
| TA | 0.2±0.1 | 2.5±0.1** | 2.6±0.2** | 1.2±0.3# |
| CT Hounsfield unit (HU) | -640.1±8.5 | -518.9±7.3** | -495.8±10.9** | -618.9±5.8## |
Data are reported as means±SE. *P<0.01, **P<0.001 vs normal group; #P<0.05, ##P<0.001 vs FIP+saline group (one-way ANOVA with post hoc Bonferroni test). FIP: fecal intraperitoneal injection procedure; AC: alveolar congestion; H: hemorrhage; AL: infiltration or aggregation of leukocytes in air spaces and vessel walls; PE: perivascular/interstitial edema; TA: thickness of alveolar wall/hyaline membrane formation.