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Contrast-enhanced ultrasound imaging features of pNETs.
| Characteristic | pNETs G1/G2 (n = 31, %) |
pNETs G3/pNECs (n = 11, %) |
p Value |
|---|---|---|---|
| Enhancement pattern | |||
| Homogeneous | 17 (54.8) | 2 (18.2) | 0.075 |
| Heterogenous | 14 (45.2) | 9 (81.8) | |
| Enhanced degree in arterial phase | |||
| Hyperenhancement | 18 (58.1) | 3 (27.3) | 0.069 |
| Isoenhancement | 9 (29.0) | 3 (27.3) | |
| Hypoenhancement | 4 (12.9) | 5 (45.5) | |
| Nonenhancement area | |||
| Present | 4 (12.9) | 3 (27.3) | 0.353 |
| Absent | 27 (87.1) | 8 (72.7) |
