Table 7.
Comparing analysis, the frequency of occurring US features of the thyroid lesion regarding maximal measurement ≤1 cm and >1 cm (p-values were calculated by Chi-square tests).
| Parameter | Analyzed feature | Lesion >10 mm | Lesion ≤10 mm | p-value | ||
|---|---|---|---|---|---|---|
| Benign (%) | Malignant (%) | Benign (%) | Malignant (%) | |||
| Composition | >50%Solid; Solid | 78 (66.10) | 40 (33.90) | 32 (53.33) | 28 (46.67) | 0.098 |
| Echo pattern | Markedly hypoechoic | 11 (39.29) | 17 (60.71) | 4 (26.67) | 11 (73.33) | 0.408 |
| Echo pattern | Hypoechoic | 85 (63.43) | 49 (36.57) | 46 (56.10) | 36 (43.90) | 0.284 |
| Margins | Ill-define | 21 (35.00) | 39 (65.00) | 11 (29.73) | 26 (70.27) | 0.592 |
| Tall/wide | >0.9565 | 67 (61.47) | 42 (38.53) | 40 (61.54) | 25 (38.46) | 0.993 |
| Microcalcifications | Present | 42 (48.84) | 44 (51.16) | 14 (42.42) | 19 (57.58) | 0.530 |
| Macrocalcifications | Present | 26 (46.43) | 30 (53.57) | 10 (55.56) | 8 (44.44) | 0.500 |
| Thyroid capsule | Infiltration; Deformation | 32 (52.46) | 29 (47.54) | 1 (11.11) | 8 (88.89) | 0.030 |
| “Halo” pattern | Partial; No | 111 (66.07) | 57 (33.93) | 51 (58.62) | 36 (41.38) | 0.241 |
| Asteria Scale | 3,4 | 64 (57.14) | 48 (42.86) | 23 (42.59) | 31 (57.41) | 0.079 |
| Asteria Scale | 4 | 15 (39.47) | 23 (60.53) | 7 (25.00) | 21 (75.00) | 0.239 |