Table 2.
Imaging parameters stratified by histopathological inflammation grade [in 35 patients with CD and 40 ileal segments analysed].
| Parameter | Grade 1 [n*** = 15] | Grade 2/3 [n*** = 25] | p |
|---|---|---|---|
| Length of involved bowel | 5.93 ± 3.99 | 9.32 ± 5.79 | 0.035 |
| Pattern of enhancement at 25 s* | 0.01 | ||
| • Homogeneous | 10 [67%] | 4 [20%] | |
| • Layered/mucosal only | 5 [33%] | 16 [80%] | |
| Pattern of enhancement at 60 s | 0.05 | ||
| • Homogeneous | 11 [73%] | 10 [40%] | |
| • Layered/mucosal only | 4 [27%] | 15 [60%] | |
| Pattern of enhancement at 180 s** | 1 | ||
| • Homogeneous | 11 [79%] | 19 [79%] | |
| • Layered/mucosal only | 3 [21%] | 5 [21%] | |
| Degree of enhancement at 60 s | 0.024 | ||
| • Mild-moderate enhancement | 7 [47%] | 3 [12%] | |
| • Marked enhancement | 8 [53%] | 22 [88%] | |
| Ulceration | 6 [40%] | 18 [72%] | 0.09 |
| Fistula | 5 [33%] | 16 [64%] | 0.1 |
| Abscess | 3 [20%] | 9 [36%] | 0.47 |
| Comb sign | 2 [13%] | 7 [32%] | 0.44 |
| Upstream dilation | 10 [40%] | 15 [60%] | 0.749 |
| Enhancement ratio at 25 s* | 162.1 ± 98.4 | 184.9 ± 71.9 | 0.4 |
| Enhancement ratio at 60 s | 176.4 ± 67.1 | 200.4 ± 63.5 | 0.222 |
| Enhancement ratio at 180 s** | 173.2 ± 61.2 | 188.9 ± 55.1 | 0.455 |
| ADC* | 1.28 ± 0.27 | 1.07 ± 0.14 | 0.028 |
| Wall thickness on T1W post-contrast | 6.86 ± 2.65 | 9.22 ± 3.63 | 0.018 |
| Wall thickness on T2WI | 6.79 ± 2.22 | 7.79 ± 2.03 | 0.148 |
| MaRIa score | 23.3 ± 8.0 | 31.0 ± 13.5 | 0.013 |
| Clermont score | 28.5 ± 7.2 | 33.2 ± 8.2 | 0.115 |
Significant p-values are bolded. Quantitative data are presented as mean ± standard deviation. Qualitative data are presented as number of cases [percentage of cases].
*Not available in five patients.
**Not available in two patients.
***Number of bowel segments.