Table S1. Feature information of radiomics index.
| Feature name | Coefficient | VOI | Feature category |
| VOI, volume of interest.
Radiomics index = −0.02247 × LocalRangeMin − 0.00062 × LocalStdMean − 0.04582 × Contrast + 0.11071 × (45-7Homogeneity) + 0.00178 × LocalRangeStd + 1.00E−05 × ConvexHullVolume3D + 0.01333 × Max3DDiameter + 0.00014 × SurfaceArea.1 + 0.94415 × (45-7Homogeneity.1) − 0.47889 × (90-4InformationMeasureCorr2.1) + 0.35481 × (45-4Homogeneity.2) + 2.00E−05 × (90LongRunHighGrayLevelEmpha.1) | |||
| LocalRangeMin | −0.02247 | Tumor | Intensity Direct |
| LocalStdMean | −0.00062 | Tumor | Intensity Direct |
| Contrast | −0.04582 | Tumor | Neighbor Intensity Difference 2.5 |
| 45-7Homogeneity | 0.11071 | Lymph node | Gray Level Cooccurence Matrix 2.5 |
| LocalRangeStd | 0.00178 | Lymph node | Intensity Direct |
| ConvexHullVolume3D | 0.00001 | Lymph node | Shape |
| Max3DDiameter | 0.01333 | Lymph node | Shape |
| SurfaceArea.1 | 0.00014 | Lymph node | Shape |
| 45-7Homogeneity.1 | 0.94415 | Lymph node | Gray Level Cooccurence Matrix 2.5 |
| 90-4InformationMeasureCorr2.1 | −0.47889 | Lymph node | Gray Level Cooccurence Matrix 2.5 |
| 45-4Homogeneity.2 | 0.35481 | Lymph node | Gray Level Cooccurence Matrix 2.5 |
| 90LongRunHighGrayLevelEmpha.1 | 0.00002 | Lymph node | Gray Level Run Length Matrix 2.5 |