Table 3.
Optimal feature subset and coefficients for LR model construction selected by RFE in intra-radiomics and peri-radiomics
| Intra-radiomics | Peri-radiomics | ||
|---|---|---|---|
| Variables | Coefficients | Variables | Coefficient |
| Intercept | 0.0271 | Intercept | -0.3104 |
| ADC_intra_original_firstorder_Minimum | 0.6760 | ADC_peri_original_firstorder_Minimum | 0.1185 |
| ADC_intra_original_glcm_JointEntropy | 0.8090 | ADC_peri_original_glcm_Imc1 | 0.44308 |
| ADC_intra_wavelet-HLL_glcm_JointAverage | 0.9541 | ADC_peri_original_shape_Sphericity | 0.1115 |
| ADC_intra_wavelet-LLL_firstorder_10Percentile | -1.2014 | ADC_peri_wavelet-HHH_glszm_ZoneEntropy | -0.8737 |
| ADC_intra_wavelet-LLL_firstorder_90Percentile | -1.0687 | ADC_peri_wavelet-HHL_gldm_LargeDependenceLowGrayLevelEmphasis | -1.4451 |
| ADC_intra_wavelet-LLL_glcm_MCC | -0.4457 | ADC_peri_wavelet-HLL_firstorder_Mean | -0.5321 |
| T2_intra_wavelet-LHH_firstorder_Kurtosis | 0.4659 | ADC_peri_wavelet-LHL_glcm_Id | -0.9485 |
| T2_intra_wavelet-LHL_firstorder_Kurtosis | 0.0860 | ADC_peri_wavelet-LLH_glrlm_RunEntropy | 0.9242 |
| T2_intra_wavelet-LHL_firstorder_Minimum | -0.6449 | ADC_peri_wavelet-LLL_firstorder_Median | -1.0187 |
| T2_intra_wavelet-LLL_firstorder_10Percentile | -0.8418 | ADC_peri_wavelet-LLL_firstorder_Minimum | -0.0595 |
| T2_peri_wavelet-HHL_firstorder_Maximum | 0.3938 | ||
| T2_peri_wavelet-HLH_firstorder_Kurtosis | 0.2986 | ||
| T2_peri_wavelet-LHL_firstorder_Skewness | -0.3093 | ||
| T2_peri_wavelet-LLH_glcm_Idmn | -0.5498 | ||
| T2_peri_wavelet-LLH_glcm_Idn | 0.8348 | ||
| T2_peri_wavelet-LLL_firstorder_Minimum | -0.5041 | ||
LR, logistic regression; RFE, recursive feature elimination