Table 2.
The predictive performance of each radiomic model on the two test sets. For the radiomic model constructed using only NE-CT or CE-CT, the performance was only evaluated on the corresponding type of CT
| Model | CT type | Data number | Test set 1 | Test set 2 | ||
|---|---|---|---|---|---|---|
| NE-CT | CE-CT | NE-CT | CE-CT | |||
| NE | NE-CT | 167 | 0.656 ± 0.018 | \ | 0.657 ± 0.031 | \ |
| CE | CE-CT | 160 | \ | 0.737 ± 0.028 | \ | 0.711 ± 0.035 |
| G-NC | NE and CE-CT | 327 | 0.730 ± 0.028 | 0.756 ± 0.043 | 0.727 ± 0.033 | 0.739 ± 0.023 |
| p value (G-NC vs. other) | 0.048 | 0.059 | 0.205 | 0.582 | ||
p: Delong test values, when using NE-CT as input, calculate the significant difference between G-NC model and NE model; when using CE-CT as input, calculate the significant difference between G-NC model and CE model
CE-CT, contrast-enhanced CT; G-NC, general NE-CT and CE-CT; NE-CT, non-contrast-enhanced CT