Table 3.
Observed proportion of interreader agreement for graded active lesions, overall and according to bowel segments
| Bowel segments | Diffusion-weighted images |
T1 weighted images |
||
|---|---|---|---|---|
| 3-point scale | Active diseasea | Three-point scale | Active diseasea | |
| Jejunum | 97.9 (47/48) | 97.9 (47/48) | 97.9 (47/48) | 97.9 (47/48) |
| Ileum | 93.8 (45/48) | 97.9 (47/48) | 95.8 (46/38) | 97.9 (47/48) |
| Terminal ileum and ileocaecal junction | 89.6 (43/48) | 100.0 (48/48) | 89.6 (43/48) | 100.0 (48/48) |
| Ascending colon | 89.6 (43/48) | 100.0 (48/48) | 91.7 (44/48) | 100.0 (48/48) |
| Transverse colon | 89.6 (43/48) | 97.9 (47/48) | 93.8 (45/48) | 97.9 (47/48) |
| Descending colon | 93.8 (45/48) | 100.0 (48/48) | 89.6 (43/48) | 93.8 (45/62) |
| Rectosigmoid colon | 87.5 (42/48) | 95.9 (46/48) | 91.7 (44/48) | 93.8 (45/48) |
| All segments | 94.5 (308/336) | 98.5 (331/336) | 95.7 (312/336) | 97.0 (326/336) |
Values are percentage (numbers).
a
Segments graded as 2 or 3 were considered to have active disease, and segments graded as 1 were considered inactive.