Table 1.
Contrast-enhanced ultrasound modes of thyroid nodules.
| Pathology | Entry pattern |
Regression pattern |
Contrast pattern |
|||||
|---|---|---|---|---|---|---|---|---|
| Wash-in earlier | Wash-in at the same time | Wash-in later | Wash-out earlier | Wash-out at the same time | Wash-out later | Concentric | Non-concentric | |
| Benign | 23 | 29 | 7 | 9 | 40 | 10 | 6 | 53 |
| Nodular goiter | 12 | 16 | 7 | 7 | 25 | 3 | 6 | 29 |
| Nodular goiter with nodular hyperplasia | 4 | 11 | – | 2 | 11 | 2 | – | 15 |
| Adenoma | 7 | 2 | – | – | 4 | 5 | – | 9 |
| Malignant | 9 | 7 | 13 | 17 | 11 | 1 | 22 | 7 |
| Papillary carcinoma | 8 | 7 | 12 | 16 | 11 | – | 21 | 6 |
| Follicular carcinoma | 1 | – | – | – | – | 1 | – | 1 |
| Metastasis carcinoma | – | – | 1 | 1 | – | – | 1 | – |
| χ2-value | 12.607 | 17.101 | 38.677 | |||||
| P-value | 0.002 | <0.001 | <0.001 | |||||