Table 4.
Imaging parameters stratified by degree of oedema [in 35 patients with CD and 40 ileal segments analysed].
| Parameter | Grade 1 [n*** = 20] | Grade 2/3 [n*** = 20] | p |
|---|---|---|---|
| Length of involved bowel | 8 ± 5.63 | 8.1 ± 5.30 | 0.779 |
| Pattern of enhancement at 25 s* | 0.739 | ||
| • Homogeneous | 7 [37%] | 7 [44%] | |
| • Layered/mucosal only | 12 [63%] | 9 [56%] | |
| Pattern of enhancement at 60 s | 0.527 | ||
| • Homogeneous | 9 [45%] | 12 [60%] | |
| • Layered/mucosal only | 11 [55%] | 8 [40%] | |
| Pattern of enhancement at 180 s** | 0.693 | ||
| • Homogeneous | 14 [74%] | 16 [84%] | |
| • Layered/mucosal only | 5 [26%] | 3 [16%] | |
| Degree of enhancement at 60 s | 0.344 | ||
| • Mild-moderate enhancement | 4 [20%] | 1 [5%] | |
| • Marked enhancement | 2 [10%] | 3 [15%] | |
| Ulceration | 14 [70%] | 16 [80%] | |
| Fistula | 8 [40%] | 16 [80%] | 0.022 |
| Abscess | 8 [40%] | 13 [65%] | 0.205 |
| Comb sign | 4 [20%] | 8 [40%] | 0.301 |
| Upstream dilation | 4 [20%] | 5 [25%] | 1 |
| Enhancement ratio at 25 s* | 191.6 ± 93.1 | 155.6 ± 68.7 | 0.301 |
| Enhancement ratio at 60 s | 202.1 ± 73.6 | 180.6 ± 55.0 | 0.398 |
| Enhancement ratio at 180 s** | 191.4 ± 61.2 | 174.7 ± 53.1 | 0.369 |
| ADC* | 1.12 ± 0.25 | 1.16 ± 0.18 | 0.317 |
| Wall thickness on T1W post-contrast | 7.38 ± 2.29 | 9.29 ± 4.17 | 0.071 |
| Wall thickness on T2WI | 7.21 ± 1.96 | 7.62 ± 2.32 | 0.5 |
| MaRIa score | 24.9 ± 8.1 | 30.4 ± 9.0 | 0.033 |
| Clermont score | 27.7 ± 6.6 | 34.8 ± 7.8 | 0.005 |
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.