MRI and ultrasound (US) findings in all patients at baseline (MRI n=218, US n=213)
| Mean (SD) | Median (min–max) | N (%) positive | |
| MRI synovitis score (range 0–21) | 6.6 (4.2) | 6 (0–18) | 208 (95) |
| MRI tenosynovitis score (range 0–42) | 6.5 (6.0) | 5 (0–28) | 196 (90) |
| MRI bone marrow oedema score (range 0–75) | 3.9 (6.1) | 1 (0–32) | 149 (68) |
| MRI combined inflammation score (range 0–750) | 119.3 (83.4) | 99 (0–447) | 217 (99.5) |
| US grey scale score (range 0–96) | 21.2 (14.2) | 19 (1–78) | 213 (100) |
| US power Doppler score (range 0–96) | 10 (10.4) | 7 (0–60) | 196 (92) |
| US total score (range 0–192) | 31.1 (23.3) | 25 (1–131) | 213 (100) |
N (%) positive is the number and percentage of patients with a score >0 for the corresponding imaging feature.