Reliability of scoring synovitis in patients according to the joints and scanning position
| GS* (yes/no) | GS* (0–3) | PD (yes/no) | PD (0–3) | |
| Inter-readers reliability (mean) | ||||
| MCP | 0.39 | 0.53 | 0.49 | 0.50 |
| PIP | 0.11 | 0.18 | 0.16 | 0.18 |
| Scanning position | ||||
| Volar | 0.32 | 0.45 | 0.30 | 0.31 |
| Dorsal | 0.28 | 0.40 | 0.51 | 0.48 |
Kappa coefficients for assessing the participants’ reliability to detect and score synovitis using the OMERACT definition of synovitis (*GS synovitis (synovial hypertrophy, with or without effusion) and PD signal) in rheumatoid arthritis, when performing.
GS, grey-scale; MCP, metacarpophalangeal joint; OMERACT, Outcome Measures in Rheumatology; PD, power Doppler; PIP, proximal interphalangeal joint.