Interrater reliability for each MRI sequence individually and combined using the κ coefficient
| κ | Agreementa | |
|---|---|---|
| Sagittal T1 (n = 418) | 0.28 | Fair |
| Axial T2 (n = 71) | 0.34 | Fair |
| Axial GRE (n = 420) | 0.40 | Fair |
| Axial FLAIR (n = 417) | 0.34 | Fair |
| Axial DWI (n = 421) | 0.33 | Fair |
| Axial CE-SE-T1WI (n = 241) | 0.42 | Moderate |
| Axial CE-3D-T1WI (n = 199) | 0.41 | Moderate |
| MRI total (n = 429) | 0.50 | Moderate |
↵a Agreement was considered slight if κ values were 0–0.20; fair if, 0.21–0.40; moderate if, 0.41–0.60; substantial if, 0.61–0.80; and almost perfect if, 0.81–1.