Table 2. Mean value and range using SWE of the thyroid nodules.
| Histopathology | Emax* (kPa) | Emean*(kPa) | Emin* (kPa) | ER* |
|---|---|---|---|---|
| Benign | 41.3±14.8 | 25.5±10.8 | 14.2±8.4 | 1.25±0.39 |
| Malignancy | 73.0±35.7 | 39.3±17.1 | 19.2±11.7 | 1.82±0.56 |
| Total | 60.9±33.3 | 34.1±16.5 | 17.3±10.8 | 1.61±0.58 |
Emax: the maximum elasticity index of the stiffest portion of the mass or surrounding tissue.
Emean: the mean elasticity index of the stiffest portion of the mass or surrounding tissue.
Emin: the minimum elasticity index of the stiffest portion of the mass or surrounding tissue.
ER: the ratio of mean elasticity index of the lesion and parenchyma.
* Statistically significant difference of the SWE indices between malignant and benign lesions (P < 0.001).