Table III.
Performance comparison of contrast-enhanced ultrasound in the diagnosis of benign and malignant thyroid nodules.
| Access speed | Peak time | Subsidence speed | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Group | Nodule no. | Fast | Synchronous | Slow | Earlier | Synchronous | Later | Fast | Synchronous | Slow |
| Benign | 183 | 129 | 54 | 0 | 68 | 96 | 19 | 22 | 82 | 79 |
| Malignant | 136 | 4 | 42 | 90 | 18 | 32 | 86 | 120 | 14 | 2 |
| χ2 | 206.44 | 98.99 | 182.64 | |||||||
| P-value | 0.000 | 0.000 | 0.000 | |||||||
Contrast-enhanced ultrasound revealed statistically significant differences (P<0.05) between benign and malignant thyroid nodules regarding access speed, peak time and subsidence speed.