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| Vascular flow pattern | Number | Mean (cm) | Std Dev | Min (cm) | Median (cm) | Max (cm) | P value |
|---|---|---|---|---|---|---|---|
| Absent | 38 | 1.52368 | 1.09061 | 0.5 | 1.15 | 5.4 | 0.0001 |
| Perinodular only | 26 | 1.49231 | 0.81237 | 0.4 | 1.35 | 3.8 | |
| Intranodular only | 53 | 2.17359 | 1.05651 | 0.7 | 2 | 4.9 | |
| Diffuse | 6 | 2.63333 | 1.10574 | 1.1 | 2.6 | 4.1 | |
| Both intranodular and perinodular | 43 | 2.11628 | 1.11076 | 0.7 | 1.7 | 5.9 |
PTC, papillary thyroid carcinoma.
