Table 4:
Interrater reliability between 2 raters
| MR Imaging Finding | κ |
|---|---|
| Pituitary height | 0.8326 |
| Stalk thickness | 0.9136 |
| Homogeneity of enhancement | 1 |
| Hypoenhancing lesion | 0.6429a |
| Shape | 0.8535 |
| Signal intensity in T2WI | 0.8077 |
| Location (AP) | 1 |
| Location (RL) | 0.8462 |
| Pattern of enhancement | 1 |
Note:—AP indicates anterior-posterior; RL, right-left.
a
The difference in judgment between the 2 raters was observed only in 1 case (rater 1, 19/20 versus rater 2, 18/20); this was subsequently arbitrated by a third radiologist as positive for a hypoenhancing lesion.