Inter-readers reliability of scoring synovitis in static images according to the joints
| Joints | GS* Mean kappa | PD Mean kappa | ||
| (yes/no) +95% CI (min–max) | (0–3) +95% CI (min–max) | (yes/no) +95% CI (min–max) | (0–3) +95% CI (min–max) | |
| MCP | 0.74 | 0.83 | 0.97 | 0.92 |
| MTP | 0.52 | 0.66 | 0.99 | 0.93 |
| PIP | 0.59 | 0.74 | 1.0 | 0.92 |
| Wrist | 0.74 | 0.74 | 0.97 | 0.91 |
Kappa coefficients for assessing the sonographers reliability to detect and scoring synovitis using the OMERACT definition of synovitis (*GS synovitis (synovial hypertrophy, with or without effusion) and PD signal) in patients with rheumatoid arthritis, on static images.
GS, grey-scale; MCP, metacarpophalangeal joint; MTP, metatarsophalangeal joint; OMERACT, Outcome Measures in Rheumatology; PD, power Doppler; PIP, proximal interphalangeal joint.