Table 2. Diagnostic performance of pre- and postcontrast, 3 T indirect MR arthrography to diagnose any SLIL injury or a total SLIL rupture using arthroscopy as reference standard.
| Observer 1 | Observer 2 | |||
|---|---|---|---|---|
| Precontrast | Postcontrast | Precontrast | Postcontrast | |
| SLIL, any tear | ||||
| Sensitivity | 0.86 | 0.77 | 0.64 | 0.59 |
| Specificity | 0.42 | 0.65 | 0.58 | 0.81 |
| Accuracy | 0.60 | 0.77 | 0.60 | 0.72 |
| Positive predictive value | 0.51 | 0.61 | 0.52 | 0.68 |
| Negative predictive value | 0.81 | 0.88 | 0.69 | 0.74 |
| SLIL, total rupture | ||||
| Sensitivity | 0.40 | 0.40 | 0.50 | 0.50 |
| Specificity | 0.95 | 0.95 | 0.98 | 0.98 |
| Accuracy | 0.85 | 0.85 | 0.89 | 0.89 |
| Positive predictive value | 0.45 | 0.45 | 0.50 | 0.50 |
| Negative predictive value | 0.95 | 0.95 | 0.98 | 0.98 |
Abbreviations: MR, magnetic resonance; SLIL, scapholunate intrinsic ligament.