Imaging characteristics (n = 30).
| Category | |
|---|---|
| Erosions on radiograph, % (ratio) | 47 (14/30) |
| Median no. of erosions on radiograph (IQR) | 3.5 (4) |
| Erosions on ultrasound, % (ratio) | 55.1 (16/29) |
| Median no. of erosions on ultrasound (IQR) | 1 (1) |
| Median synovial thickening score by ultrasound (IQR) | 6 (8) |
| Median vascularity score by ultrasound (IQR) | 1 (3) |
| Erosions on MRI, % (ratio) | 66.7 (20/30) |
| Abnormal capsular vessels on MRA, % (ratio) | 66.7 (20/30) |
| Median RAMRIS MCP synovitis score (IQR) | 3 (5) |
| Median RAMRIS MCP bone edema score (IQR) | 0 (0) |
| Median RAMRIS MCP bone erosions score (IQR) | 0 (1) |
| Median RAMRIS wrist synovitis score (IQR) | 3 (6) |
| Median RAMRIS wrist bone edema score (IQR) | 0 (1) |
| Median RAMRIS wrist bone erosions score (IQR) | 1 (3) |
| Median no. of abnormal capsular vessels on MRA (IQR) | 4 (9) |
IQR: interquartile range; MRA: magnetic resonance angiography; MCP: metacarpophalangeal joint; RAMRIS: OMERACT rheumatoid arthritis MRI scoring system.