Table 2.
Radiomic feature selection result.
| MRI series | Selected features (CET1-w + T2-w) | P |
|---|---|---|
| CET1-w | ShapeBased_Elongation | 0.001218 |
| CET1-w | WaveletGLCM_wavelet.LLH_ClusterShade | 0.006283 |
| CET1-w | WaveletGLCM_wavelet.LHL_MCC | 0.006448 |
| CET1-w | WaveletGLSZMwavelet.HLL _SmallAreaLowGrayLevelEmphasi |
0.006222 |
| CET1-w | WaveletGLSZMwavelet.LLL _LargeAreaLowGrayLevelEmphasis |
0.001258 |
| CET1-w | SquareGLSZM_square _LowGrayLevelZoneEmphasis |
0.001393 |
| CET1-w | LogarithmGLCM_logarithm_Correlation | 0.000069 |
| CET1-w | LogarithmGLCM _logarithm_MaximumProbability |
0.000262 |
| T2-w | WaveletFirstOrder_wavelet.LLH_Energy | 0.000816 |
| T2-w | WaveletFirstOrder_wavelet.LHH_Maximum | 0.000045 |
| T2-w | WaveletFirstOrder_wavelet.LHH_Median | 0.008018 |
| T2-w | WaveletFirstOrder_wavelet.HLL_Maximum | 0.001324 |
| T2-w | WaveletFirstOrder_wavelet.HLH_Median | 0.000632 |
| T2-w | WaveletGLCM_wavelet.HLH_ClusterShade | 0.002597 |
| T2-w | WaveletGLCM_wavelet.HHH_MCC | 0.000009 |
| T2-w | WaveletGLCM_wavelet.LLL _ClusterProminence |
0.009537 |
| T2-w | WaveletNGTDM_wavelet.LHL_Contrast | 0.000443 |
| T2-w | SquareNGTDM_square_Strength | 0.000088 |
| T2-w | ExponentialGLSZM_exponential_ZoneEntropy | 0.000441 |
| T2-w | ExponentialNGTDM_exponential_Busyness | 0.000263 |
The P-value for each radiomic feature associated with outcome was calculated using Cox proportional hazards regression. CET1-w, contrast-enhanced T1-weighted; T2-w, T2-weighted.