Table 5. Comparison of using tumor elastic score, size, calcification status and combined parameters in determining HER-2 status of breast cancer.
| Tumor parameter | Cut-off value (kPa) | Sensitivity (%) | Specificity (%) | Area under ROC curve |
|---|---|---|---|---|
| Emax | 79.75 | 76.9 | 54.8 | 0.672 |
| Size | – | 61.4 | 71 | 0.675 |
| Calcification | – | 71.8 | 67.7 | 0.698 |
| Emax + size | – | 82.1 | 61.3 | 0.719 |
| Emax + calcification | – | 84.6 | 61.3 | 0.784 |
| Size + calcification | – | 94.4 | 48.4 | 0.780 |
| Emax + size + calcification | – | 66.7 | 83.9 | 0.800 |
Emax, maximum elastic modulus; HER-2, human epidermal growth factor receptor-2; ROC, receiver operating characteristic.