Table 2.
Baseline imaging characteristics
| MRI | |
| Synovitis (%) | 66.7% |
| PSAMRIS synovitis (median, IQR) | 1 (0, 2) |
| PSAMRIS synovitis (mean ± SD) | 2.17 ± 4.6 |
| Osteitis (%) | 27.8% |
| PSAMRIS osteitis (median, IQR) | 0 (0, 0) |
| PSAMRIS osteitis (mean ± SD) | 0.44 ± 1.89 |
| Erosion (%) | 72.2% |
| PSAMRIS erosion (median, IQR) | 1 (0, 4) |
| PSAMRIS erosion (mean ± SD) | 2.56 ± 3.7 |
| Proliferation (%) | 33.3% |
| PSAMRIS proliferation (median, IQR) | 0 (0, 1) |
| PSAMRIS proliferation (mean ± SD) | 0.44 ± 0.71 |
| Periarticular (%) | 16.7% |
| PSAMRIS periarticular (median, IQR) | 0 (0, 0) |
| PSAMRIS periarticular (mean ± SD) | 0.28 ± 0.67 |
| Tenosynovitis (%) | 55.6% |
| PSAMRIS tenosynovitis (median, IQR) | 0 (0, 1) |
| PSAMRIS tenosynovitis (mean ± SD) | 0.61 ± 1.15 |
| Total PSAMRIS (median, IQR) | 4 (0.75, 7.25) |
| Total PSAMRIS (mean ± SD) | 6.5 ± 8.85 |
| HR-pQCT | |
| Erosions (%) | 58.8% |
| Erosion no. (median, IQR) | 1 (0, 1.75) |
| Enthesiophytes (%) | 41.2% |
| Grade 1 | 23.5% |
| Grade 2 | 17.6% |
| Grade 3 | 0% |
Data are based on 18 psoriasis patients who completed the study
PSAMRIS psoriatic arthritis magnetic resonance imaging scoring system, MRI magnetic resonance imaging, HR-pQCT high-resolution peripheral quantitative computed tomography, IQR interquartile range, SD standard deviation