Table 1 Quantitative analysis of mean elasticity value, stiff ratio, and strain ratio of solid breast masses (n = 132) for differentiation of benign from malignant lesions
Variable | Mean elasticity value (at cut-off = 66.4 kPa) | Stiff ratio (at cut-off = 5.8) | Strain ratio (at cut-off = 2.57) |
|---|---|---|---|
Benign | 38.13 + 25.56 | 3.45 + 2.13 | 1.46 + 0.97 |
Malignant | 101.54 + 34.58 | 16.97 + 10.84 | 5.36 + 2.03 |
P value | < 0.001 | < 0.001 | < 0.001 |
Sensitivity (% ), n | 92.6 (63/68) | 91 (61/68) | 96 (65/68) |
Specificity (%), n | 97 (62/64) | 81 (52/64) | 87.5 (56/64) |
AUC (area under curve) | 0.884 | 0.872 | 0.916 |
P value* | 0.487 | 0.246 | Â |