Table 3.
MR findings stratified by clinical diagnosis of SpA.
| SpA− | SpA+ | Overall a | |
|---|---|---|---|
| Subchondral resorption (%) | 2 (7.7) | 42 (77.8) | 45 (55.6) |
| Bone marrow edema adjacent to subchondral resorption (%) | 0 (0.0) | 26 (48.1) | 26 (32.1) |
| Erosion (%) | 0 (0.0) | 33 (61.1) | 33 (40.7) |
| Bone marrow edema adjacent to erosion (%) | 0 (0.0) | 25 (46.3) | 25 (30.9) |
| Bone marrow edema elsewhere (%) | 1 (3.8) | 2 (3.7) | 3 (3.7) |
| Ankylosis (%) | 0 (0.0) | 3 (5.6) | 3 (3.7) |
| Osteoarthritis (%) | 16 (61.5) | 10 (18.5) | 26 (32.1) |
SpA spondyloarthritis, MR magnetic resonance.
a
One case was indeterminate.