Table 3 Diagnostic capability of different echo signs
Number | Echo signs | AUC (95% confidence interval) | Sensitivity | Specificity | p |
|---|---|---|---|---|---|
1 | Increased supra-aortic valve velocity | 0.714(0.450–0.979) | 1.000 | 0.429 | 0.117 |
2 | Two commissures and a “fish-mouth” opening | 0.679(0.421–0.936) | 0.786 | 0.571 | 0.192 |
3 | Thickening, hyperechogenicity, or the presence of a raphe | 0,643(0.390–0.896) | 0.571 | 0.714 | 0.296 |
4 | Post-stenotic widening of the ascending aorta | 0.607(0.344–0.870) | 0.643 | 0.571 | 0.433 |
5 | Restricted motion or opening | 0.571(0.310–0.833) | 0.429 | 0.714 | 0.602 |
6 | Eccentric or a-linear closure line | 0.571(0.317–0.826) | 0.143 | 1.000 | 0.602 |
1 + 2 | 0.893(0.752-1.000) | 0.786 | 1.000 | 0.004 | |
1 + 2 + 3 | 0.786(0.593–0.979) | 0.571 | 1.000 | 0.037 |