Table 2.
Prevalence or extent of CT findings in relation to histological inflammatory activity.
| CT-based biomarkers prevalence (%)/extent (mm) | Histological inflammatory activity score |
|
|---|---|---|
| 0–2 | 3 | |
| Wall thickness | 3.5 mm (Q1 = 1.3; Q3= 4.0) | 6.0 mm (Q1= 5.0; Q3= 7.0) |
| Mesenteric fat stranding | 73% | 94% |
| Mesenteric comb sign | 64% | 48% |
| Mesenteric lymphadenopathy | 45% | 94% |
| Mesenteric abscess | 0% | 32% |
| Intraperitoneal free fluid | 18% | 39% |
| Fistula | 27% | 38% |
| Skip lesions | 45% | 60% |
The prevalence of CT findings in the abdominal digestive tract including mesenteric fat stranding, mesenteric adenopathy, mesenteric abscess, intra-peritoneal free fluid, fistula and skip lesions as well as the extent of bowel wall thickening tended to be higher in patients with high histological inflammatory activity score (score = 3) compared to patients with low to moderate inflammatory activity (score = 0–2). The prevalence of the mesenteric comb sign tended to be lower in patients with high inflammatory activity.