Table 6 Detection and scoring of erosions at wrist bones (n = 255).
| Bone | Erosions | κ† | CI† | p Value† (McNemar) | |
|---|---|---|---|---|---|
| Low‐field MRI (n)* | Conventional MRI (n)* | ||||
| Radius | 4 | 4 | 1.00 | 1.00 to 1.00 | NA |
| Ulna | 10 | 7 | 0.88 | 0.74 to 1.00 | 0.250 |
| Pisiform | 2 | 3 | 0.73 | 0.49 to 0.97 | 1.000 |
| Triquetrum | 11 | 10 | 0.92 | 0.82 to 1.00 | 1.000 |
| Lunate | 11 | 9 | 0.85 | 0.71 to 0.99 | 0.375 |
| Scaphoid | 8 | 8 | 0.84 | 0.68 to 1.00 | 0.562 |
| Hamate | 12 | 11 | 0.78 | 0.68 to 0.89 | 0.062 |
| Capitate | 11 | 10 | 0.94 | 0.88 to 1.00 | 0.500 |
| Trapezoid | 5 | 3 | 0.68 | 0.49 to 0.87 | 0.125 |
| Trapezium | 8 | 8 | 0.65 | 0.51 to 0.79 | 0.531 |
| 1st MC base | 5 | 5 | 0.95 | 0.87 to 1.00 | 1.000 |
| 2nd MC base | 8 | 7 | 0.83 | 0.65 to 1.00 | 0.625 |
| 3rd MC base | 7 | 7 | 0.97 | 0.93 to 1.00 | 1.000 |
| 4th MC base | 5 | 4 | 0.87 | 0.62 to 1.00 | 1.000 |
| 5th MC base | 4 | 4 | 1.00 | 1.00 to 1.00 | NA |
| Total | 111 | 100 | |||
MC, metacarpal; NA, not applicable (no discordant pairs).
*Number of affected bones.
†Based on scoring results of individual bones.