Table 2.
Cox analysis of SyMRI and DWI parameters for the prediction of disease progression in NPC patients
| Parameters | HR (95% CI) | p value |
|---|---|---|
| SyMRI | ||
| T1_10th | 1.001 (0.996, 1.005) | 0.825 |
| T1_Mean | 0.999 (0.996, 1.002) | 0.571 |
| T1_Kurtosis* | 1.083 (1.007, 1.165) | 0.003 |
| T1_Skewness | 1.943 (1.090, 3.465) | 0.024 |
| T2_10th | 0.929 (0.865, 0.999) | 0.047 |
| T2_Mean | 0.949 (0.883, 1.019) | 0.146 |
| T2_Kurtosis | 1.000 (1.000, 1.001) | 0.294 |
| T2_Skewness | 1.023 (0.978, 1.070) | 0.326 |
| PD_10th | 0.889 (0.782, 1.011) | 0.073 |
| PD_Mean | 0.836 (0.717, 0.975) | 0.022 |
| PD_Kurtosis | 1.127 (0.821, 1.547) | 0.460 |
| PD_Skewness | 1.111 (0.367, 3.367) | 0.852 |
| DWI | ||
| ADC | 1.006 (1.001, 1.010) | 0.002 |
Parameters in bold mean p < 0.05; *Only T1_Kurtosis was selected to construct SyMRI model after multivariate Cox proportional hazards regression analysis