Table 3. Qualitative assessment with monochromatic image of different pathological ccRCC during CP and PP.
| CT signs | A (35) | B (27) | χ2-value | P-value | |||
|---|---|---|---|---|---|---|---|
| n | % | n | % | ||||
| Shape | regular | 27 | 77.1 | 8 | 29.6 | 16.362 | <0.001 |
| no | 8 | 22.9 | 19 | 70.4 | |||
| Calcification | yes | 11 | 31.4 | 4 | 14.8 | 3.981 | 0.137 |
| no | 24 | 68.6 | 23 | 85.2 | |||
| Pseudocapsule | yes | 26 | 74.3 | 7 | 25.9 | 18.258 | <0.001 |
| no | 9 | 25.7 | 20 | 74.1 | |||
| Necrosis | yes | 17 | 48.6 | 24 | 88.9 | 11.467 | 0.003 |
| no | 18 | 51.4 | 3 | 11.1 | |||
| Enhancement pattern |
Homogeneous | 10 | 28.6 | 3 | 11.1 | 3.004 | 0.223 |
| no | 25 | 71.4 | 24 | 88.9 | |||
Data are numbers of lesions and percentages. P<0.05 indicates a statistically significant difference between low-grade ccRCC and high-grade ccRCC.