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CEUS enhancement extent of PTCS in lymph node metastasis group and non-metastatic group.
| Enhancement | Metastasis group | Non-metastatic group | χ2 | P value |
|---|---|---|---|---|
| n=162 | n=217 | |||
| Hyper | 21 | 10 | 8.286 | 0.004 |
| Hypo | 109 | 159 | ||
| Iso | 32 | 48 | 0.012 | 0.914 |
| Hypo | 109 | 159 | ||
| Hyper | 21 | 10 | 6.892 | 0.009 |
| Iso | 32 | 48 |
