From: Quantitative shear wave ultrasound elastography: initial experience in solid breast masses
 | Elastography | BI-RADS |
---|---|---|
Positive predictive value (%) | 88 (77 to 99) | 84 (71 to 97) |
Negative predictive value (%) | 95 (85 to 100) | 82 (66 to 98) |
Sensitivity (true positive fraction) (%) | 97 (90 to 100) | 87 (75 to 99) |
Specificity (true negative fraction) (%) | 83 (67 to 98) | 78 (61 to 95) |
Accuracy (%) | 91 | 83 |
Misclassification rate (%) | 9 | 17 |
Youden's index | 0.79 | 0.65 |
Area under curve | 0.90 (0.81 to 0.98) | 0.83 (0.71 to 0.94) |
Area under curve difference | 0.07 (-0.02 to 0.16) | Â |
P value (Mann-Whitney U test) | 0.129 | Â |