Table 3.
Non-texture features of ccRCC and non-ccRCC
| ccRCC | non-ccRCC | P value | AUC | |
|---|---|---|---|---|
| NCP | ||||
| Lesion Attenuation Value | 33.996士9.443 | 35.843士7.821 | 0.109 | 0.574 |
| Relative Attenuation of renal cortex | 0.075士0.320 | 0.105士0.297 | 0.610 | 0.624 |
| Percentage Enhancement Ratio of renal cortex | 1.035士0.387 | 0.984士0.288 | 0.528 | 0.529 |
| Enhancement Change of renal cortex | -1.862士9.447 | -2.567士9.514 | 0.640 | 0.522 |
| Corrected CT values relative to renal cortex | 34.506士10.119 | 34.551士9.685 | 0.213 | 0.658 |
| CMP | ||||
| Lesion Attenuation Value | 124.394士47.847 | 78.494士34.898 | <0.001* | 0.779 |
| Absolute Enhancement | 90.403士49.572 | 42.661士31.789 | <0.001* | 0.784 |
| Percentage Enhancement Ratio of Absolute Enhancement | 3.010士2.283 | 1.174士0.850 | <0.001* | 0.803 |
| Relative Attenuation of renal cortex | −0.972士0.371 | −0.456士0.241 | <0.001* | 0.809 |
| Percentage Enhancement Ratio of renal cortex | 1.396士0.846 | 2.368士1.263 | <0.001* | 0.799 |
| Enhancement Change of renal cortex | 17.664士47.849 | 69.795士43.817 | <0.001* | 0.780 |
| rTEV | 0.886士0.738 | 0.409士0.324 | <0.001* | 0.800 |
| Corrected CT values relative to renal cortex | 128.291士52.369 | 81.609士36.276 | <0.001* | 0.787 |
| Corrected CT values relative to aorta | 127.631士45.998 | 81.623士37.425 | <0.001* | 0.787 |
| Percentage Enhancement Ratio of aorta | 0.439士0.153 | 0.287士0.138 | <0.001* | 0.777 |
| Relative Attenuation of aorta | 0.571士0.157 | 0.722士0.135 | <0.001* | 0.777 |
| Enhancement Change of aorta | 174.474士73.398 | 215.335士85.426 | 0.004* | 0.733 |
| NP | ||||
| Lesion Attenuation Value | 91.727士22.870 | 73.092士23.618 | <0.001* | 0.725 |
| Absolute Enhancement | 57.735士23.909 | 37.259士21.359 | <0.001* | 0.755 |
| Absolute Deenhancement | −32.674士34.765 | −5.400士20.700 | <0.001* | 0.742 |
| Percentage Enhancement Ratio of Absolute Enhancement | 1.913士1.213 | 1.074士0.626 | <0.001* | 0.756 |
| Relative Attenuation of renal cortex | −0.322士0.187 | −0.431士0.181 | <0.001* | 0.712 |
| Percentage Enhancement Ratio of renal cortex | 1.627士0.623 | 2.366士1.263 | <0.001* | 0.699 |
| Enhancement Change of renal cortex | 45.249士22.876 | 59.712士28.872 | 0.001* | 0.660 |
| rTEV | 0.575士0.281 | 0.393士0.227 | <0.001* | 0.729 |
| Corrected CT values relative to renal cortex | 93.596士24.267 | 74.648士24.734 | <0.001* | 0.735 |
| Corrected CT values relative to aorta | 91.923士18.694 | 73.195士21.801 | <0.001* | 0.751 |
| Percentage Enhancement Ratio of aorta | 0.753士0.150 | 0.593士0.188 | <0.001* | 0.761 |
| Relative Attenuation of aorta | 0.258士0.154 | 0.419士0.184 | <0.001* | 0.761 |
| Enhancement Change of aorta | 30.156士19.672 | 50.440士23.580 | <0.001* | 0.750 |
| EP | ||||
| Lesion Attenuation Value | 72.978士16.014 | 63.385士16.952 | <0.001* | 0.670 |
| Absolute Enhancement | 38.995士16.019 | 27.550士14.126 | <0.001* | 0.730 |
| Absolute Deenhancement | −18.759士12.282 | −9.701士11.864 | <0.001* | 0.704 |
| Percentage Enhancement Ratio of Absolute Enhancement | 1.294士0.806 | 0.793士0.418 | 0.077 | 0.602 |
| Relative Attenuation of renal cortex | −0.388士0.134 | −0.468士0.134 | 0.341 | 0.555 |
| Percentage Enhancement Ratio of renal cortex | 1.724士0.550 | 2.034士0.600 | 0.678 | 0.524 |
| Enhancement Change of renal cortex | 45.673士16.017 | 56.313士21.001 | 0.789 | 0.515 |
| rTEV | 0.467士0.191 | 0.339士0.156 | 0.143 | 0.584 |
| Corrected CT values relative to renal cortex | 74.002士15.976 | 64.228士15.503 | 0.011* | 0.647 |
| Corrected CT values relative to aorta | 73.050士12.505 | 63.274士13.974 | 0.016* | 0.639 |
| Percentage Enhancement Ratio of aorta | 0.784士0.133 | 0.676士0.152 | <0.001* | 0.729 |
| Relative Attenuation of aorta | 0.222士0.137 | 0.331士0.158 | <0.001* | 0.729 |
| Enhancement Change of aorta | 20.779士13.349 | 31.112士14.534 | <0.001* | 0.718 |
Note: * represents statistically significant; the non-contrast phase, NCP; the corticomedullary phase, CMP; the nephrographic phase, NP and the excretory phase, EP