Exercise B. Detection of synovitis and bone erosion by unenhanced low-field E-MRI, when gadolinium-enhanced MRI is considered the gold standard reference.
| Type of pathology | Joints | Performance Unenhanced (−Gd) MRI* | |||
|---|---|---|---|---|---|
| Sensitivity | Specificity | Accuracy | ICC** | ||
| Erosion | Wrist and MCP | 0.93 | 0.99 | 0.97 | 0.99 |
| Synovitis | Wrist and MCP | 0.60 | 0.96 | 0.76 | 0.61 |
↵* Values are means of values for observer 1 and observer 2. No major or systematic differences between observers were observed.
↵** ICC single measures intraclass correlation coefficient between readings on unenhanced and enhanced MRI (this value can be considered a “worst-case” scenario intraobserver ICC).