Table 1.
Main ultrasound characteristics of 72 solid nodules included in the study
| CNB group | FNA group | P | |
|---|---|---|---|
| Size (mm) |
12.3 ± 3.8 |
11.2 ± 5.1 |
0.31 |
| Marked hypoechogenicity |
26 (82.9%) |
37 (90.2%) |
0.48 |
| Taller shape |
5 (16.1%) |
7 (17.1%) |
0.83 |
| Microcalcifications |
14 (45.2%) |
21 (51.2%) |
0.78 |
| Intranodular vascularization |
17 (54.8%) |
20 (48.8%) |
0.78 |
| Score III to IV at elastography |
26 (83.9%) |
32 (78.0%) |
0.75 |
| More than two risk features | 15 (48.4%) | 17 (41.5%) | 0.72 |
Legend: CNB, core needle biopsy; FNA, fine-needle aspiration. Marked hypoechogenicity, solid hypoechoic nodule with no cystic areas. Taller shape, taller than wide shaped nodule. Microcalcifications, hyperechoic punctuations <2 mm. Intranodular vascularization, intralesional vascular signal. Score III to IV at elastography, blue color in more than 50% of the nodule.