Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Cohort characteristics, elasticity, shear wave velocity and vascularity index values of benign and malignant lesions
| Pleomorphic adenoma (n = 14) | Warthin tumor (n = 16) | p-value | |
|---|---|---|---|
| Age (mean ± SD) | 41 ± 14.1 | 58.5 ± 11 | ≤0.001* |
| Gender (F/M) | 8/6 | 1/15 | 0.002* |
| Tumor volume (mm3) | 304 ± 614 | 411 ± 267 | 0.13 |
| Elasticity (in kilopascals) | 57.5 ± 31.3 | 40 ± 21.3 | 0.11 |
| Shear wave velocity (in meters per second) | 4.0 ± 1.8 | 3.3 ± 0.9 | 0.52 |
| Relative elasticity | 3.2 ± 2.6 | 1.5 ± 0.9 | 0.64 |
| Relative shear wave velocity | 1.6 ± 0.8 | 1.2 ± 0.4 | 0.22 |
| Relative shear wave velocity | 1.6 ± 0.8 | 1.2 ± 0.4 | 0.22 |
| Vascularity index | 2.9 ± 3.1 | 9.5 ± 9.5 | 0.012* |
Cohort characteristics, elasticity, shear wave velocity and vascular index values of benign and malignant lesions
| Benign (n = 33) | Malignant (n = 4) | |
|---|---|---|
| Age (mean ± SD) | 48.6 ± 16.6 | 45.0 ± 30.6 |
| Gender (F/M) | 11/22 | 1/3 |
| Tumor volume (mm3) | 342 ± 284 | 401 ± 359 |
| Elasticity (in kilopascals) | 47.7 ± 27.3 | 55.6 ± 17.9 |
| Shear wave velocity (in meters per second) | 3.6 ± 1.4 | 4.1 ± 0.8 |
| Relative elasticity | 2.6 ± 2.8 | 5.1 ± 1.4 |
| Relative shear wave velocity | 1.4 ± 0.81 | 2 ± 0.4 |
| Vascular index | 6.2 ± 7.5 | 4.7 ± 4.5 |