Table 2 Detection and scoring of synovitis at metacarpophalangeal and proximal interphalangeal joints (n = 136).
| Joint | Synovitis | κ† | CI† | p Value† (McNemar) | |
|---|---|---|---|---|---|
| Low‐field MRI (n)* | Conventional MRI (n)* | ||||
| 2nd MCP | 17 | 16 | 0.94 | 0.88 to 0.99 | 0.359 |
| 3rd MCP | 15 | 13 | 0.93 | 0.87 to 0.99 | 1.000 |
| 4th MCP | 12 | 10 | 0.81 | 0.62 to 0.99 | 1.000 |
| 5th MCP | 15 | 12 | 0.89 | 0.80 to 0.98 | 0.007 |
| 2nd PIP | 12 | 10 | 0.90 | 0.82 to 0.98 | 0.726 |
| 3rd PIP | 14 | 10 | 0.94 | 0.87 to 0.99 | 0.062 |
| 4th PIP | 16 | 13 | 0.92 | 0.86 to 0.97 | 0.179 |
| 5th PIP | 14 | 8 | 0.74 | 0.53 to 0.94 | 0.005 |
| Total | 115 | 92 | |||
MCP, metacarpophalangeal joint; PIP, proximal interphalangeal joint.
*Number of affected joints.
†Based on scoring results of individual joints.