Validation of MRI scoring system
| MRI score | Reliability | 95% CI |
|---|---|---|
| Interobserver reliability | ||
| Synovitis | 0.74 | (0.56, 0.85) |
| Tendonitis | 0.77 | (0.60, 0.87) |
| Bone marrow oedema | 0.84 | (0.72, 0.91) |
| Erosion score | 0.77 | (0.60, 0.87) |
| Erosion number | 0.79 | (0.64, 0.98) |
| Total MRI score | 0.81 | (0.64, 0.89) |
| Intraobserver reliability | ||
| Observer 1 | ||
| Total score | 0.94 | (0.66, 0.99) |
| Erosion score | 0.98 | (0.93, 0.99) |
| Observer 2 | ||
| Total score | 0.81 | (0.05, 0.95) |
| Erosion score | 0.92 | (0.48, 0.98) |