Table 4 Diagnostic performance of elasticity score and strain ratio in isolation and combined
Elasticity score (ES) | Strain ratio (SR) | Combined ES and SR | |
|---|---|---|---|
Cut-off point | > 47% | > 1.9 | |
AUC | 0.912 | 0.956 | 0.891 |
95% CI | 0.78–0.98 | 0.84–0.996 | 0.75–0.97 |
P value | < 0.001* | < 0.001* | < 0.001* |
TP | 55 | 55 | 58 |
TN | 24 | 23 | 25 |
FP | 3 | 3 | 1 |
FN | 2 | 3 | 1 |
Sensitivity | 96.4% | 94.8% | 98.3% |
Specificity | 88.8% | 88.5% | 96.1% |
PPV | 95.8% | 94.8% | 92.9% |
NPV | 92.3% | 88.5% | 96.1% |
Accuracy | 94.4% | 92.8% | 98.11% |