Table 2 The image features selected by LASSO Cox model for construction of multiparametric radiomics signature. The features were ranked by their contribution to the signature. The feature was named as modality_region_matrix_title, where title can be found in Supplementary Table 1. Note that there were two different calculations for GLCM_IMC, which can be found in4. Here GLCM_IMC2 indicated the second calculation listed in4.
No. | Feature | Weight | Extraction Parameters | C-Index on Validation Data |
|---|---|---|---|---|
\({f}_{1}\) | T1_wholetumor_GLCM_IDMN | −0.67085113 | VS = 1, QM = Ld, GL = 128 | 0.397 |
\({f}_{2}\) | T1C_solidecore_GLRLM_HGRE | 0.66718691 | VS = 1, QM = Ld, GL = 32 | 0.582 |
\({f}_{3}\) | T1_wholetumor_GLSZM_GLN | 0.52140412 | VS = 1, QM = Eq, GL = 32 | 0.605 |
\({f}_{4}\) | T1C_nonenhancing_GLCM_IMC2 | -0.15004393 | VS = 1, QM = Eq, GL = 64 | 0.401 |
