表 2. Radiomic features and partial regression coefficient in T2WI+DWI+ADC combined model.
多序列联合数据集（T2WI+DWI+ADC）构建模型的特征及其回归系数
| Radiomic features | β |
| β: Partial regression coefficient; CEA: Carcinoembryonic antigen; T2WI: T2 weighted image; DWI: Diffusion weighted image; ADC: Apparent diffusion coefficient; mrT stage: The T stage of primary site based on MR images; mrN stage: The N stage of lymph node based on MR images. | |
| Intercept | −0.576 |
| mrT stage T1-2 | 0.617 |
| mrT stage T3 | −0.258 |
| mrN stage N0 | −1.699 |
| mrN stage N1-2 | 0.574 |
| Primary tumor site <5 cm | 0.790 |
| Age 40-<50 yr. | −0.135 |
| Age 50-<60 yr. | 0.011 |
| Age 70-<80 yr. | −0.545 |
| Gender | 0.109 |
| CEA | 0.947 |
| T2WI ClusterProminence_AllDirection_offset1_SD | 0.322 |
| T2WI SumAverage | −0.125 |
| DWI ClusterShade_angle45_offset7 | −0.480 |
| DWI Correlation_angle45_offset4 | 0.372 |
| DWI GLCMEntropy_AllDirection_offset1_SD | 0.028 |
| DWI ShortRunEmphasis_AllDirection_offset7_SD | −0.172 |
| DWI SurfaceArea | 0.106 |
| ADC MaxIntensity | 0.119 |
| ADC MinIntensity | −0.163 |
| ADC Kurtosis | 0.222 |
| ADC ClusterShade_angle0_offset7 | 0.254 |
| ADC Correlation_AllDirection_offset4_SD | −0.149 |
| ADC Correlation_angle90_offset4 | 0.028 |
| ADC InverseDifferenceMoment_AllDirection_offset1_SD | −0.081 |
| ADC LongRunHighGreyLevelEmphasis_angle45_offset4 | −0.143 |
| ADC SurfaceVolumeRatio | −0.119 |