Table 5. Sensitivity and specificity of conventional criteria and combined criteria.
| Parameter | All lesions |
Lesions >1.0 cm in size |
||
| Sensitivity [% (CI)] | Specificity [% (CI)] | Sensitivity [% (CI)] | Specificity [% (CI)] | |
| Arterial enhancement and washout | 13.8 (5.1, 32.2) | 100 (NA) | 13.0 (4.1, 34.4) | 100 (NA) |
| New diagnostic criteriaa in our study | 58.6 (39.4, 75.5) | 100 (NA) | 60.9 (40.3, 78.2) | 100 (NA) |
| p-value | 0.0002 | NA | 0.0006 | NA |
CI, confidence interval; NA, not applicable (95% CI and p-value could not be calculated owing to absence of false positives).
aPresence of three or more positive findings of T1 hypointensity, T2 hyperintensity, diffusion-weighted imaging hyperintensity, arterial enhancement, washout and hepatobiliary hypointensity, and size threshold ≥1.5 cm.