Table 5.
Comparison of mean elasticity measurements (in kPa) with respect to nodule size, and presence of cystic and vascular components.
| Nodule Features | <25mm | N | >=25mm | N | p-value | |
|---|---|---|---|---|---|---|
| Nodule size | Benign | 33.91±19.13 | (62) | 24.11±14.66 | (50) | 0.0035* |
| Malignant | 67.26±20.02 | (17) | 69.47±18.10 | (5) | 0.8278 | |
| All | 37.49±22.57 | (103) | 25.98±18.40 | (70) | 0.0005* | |
|
| ||||||
| Yes (kPa) | N | No (kPa) | N | p-value | ||
|
| ||||||
| Cystic component | Benign | 28.82±18.07 | (61) | 30.39±17.81 | (51) | 0.5338 |
| Malignant | 62.20 | (1) | 68.03±19.64 | (21) | 0.6935 | |
| All | 27.23±17.99 | (72) | 36.83±23.24 | (101) | 0.0039* | |
|
| ||||||
| Yes (kPa) | N | No (kPa) | N | p-value | ||
|
| ||||||
| Vascularity | Benign | 23.86±14.55 | (27) | 31.33±18.54 | (85) | 0.0403* |
| Malignant | 54.90±18.89 | (5) | 71.55±18.11 | (17) | 0.2246 | |
| All | 27.12±17.12 | (44) | 34.79±22.77 | (129) | 0.0489* | |
N indicates statistical frequency; All includes Bethesda categories I, II, III, IV, V, and VI.
*
p<0.05