From: Detection of knee synovitis using non-contrast-enhanced qDESS compared with contrast-enhanced MRI
Synovitis grade based on CE-MRI | AUC (std. error) | Cut-off value of whole-joint synovitis sum score [24] | TP | TN | FP | FN | Sensitivity (95%CI) | Specificity (95%CI) | PPV (95%CI) | NPV (95%CI) |
---|---|---|---|---|---|---|---|---|---|---|
Mild or higher (n = 20) | 0.98 (0.02) | ≥ 5 | 20 | 10 | 1 | 0 | 1.00 (0.80–1.00) | 0.91 (0.57–1.00) | 0.95 (0.74–1.00) | 1.00 (0.66–1.00) |
Moderate or higher (n = 11) | 0.98 (0.02) | ≥ 9 | 8 | 20 | 0 | 3 | 0.73 (0.39–0.93) | 1.00 (0.80–1.00) | 1.00 (0.60–1.00) | 0.87 (0.65–0.97) |
Severe (n = 5) | 0.96 (0.03) | ≥ 13 | 0 | 26 | 0 | 5 | 0 (0–0.54) | 1.00 (0.84–1.00) | – | 0.84 (0.66–0.94) |