Table 2.
Area under ROC curves (AUCs) and optimal thresholds of 18F-FDG-PET and texture parameters to predict OS.
| Parameters | AUC | 95% confidence intervals | p value | Optimal cutoff value |
|---|---|---|---|---|
| 18 F-FDG-PET | ||||
| SUVmax | 0.578 | 0.308–0.847 | 0.568 | 7.37 |
| SUVmean | 0.589 | 0.318–0.86 | 0.514 | 7.00 |
| MTV | 0.722 | 0.487–0.957 | 0.102 | 88.80 |
| TLG | 0.733 | 0.506–0.961 | 0.086 | 13.05 |
|
| ||||
| Texture analysis | ||||
| GLCM_Correlation | 0.867 | 0.703–1.000 | 0.007 | 0.66 |
| GLRLM_HGRE | 0.794 | 0.576–1.000 | 0.030 | 171.95 |
| GLRLM_SRHGE | 0.778 | 0.553–1.000 | 0.041 | 163.20 |
| GLRLM_LRHGE | 0.800 | 0.585–1.000 | 0.027 | 215.80 |
| GLRLM_RLNU | 0.878 | 0.719–1.000 | 0.006 | 216.60 |
| GLZLM_HGZE | 0.778 | 0.555–1.000 | 0.041 | 205.05 |
| GLZLM_GLNU | 0.844 | 0.661–1.000 | 0.011 | 2.90 |
| GLZLM_ZLNU | 0.856 | 0.685–1.000 | 0.009 | 9.75 |
| HISTO_Entropy | 0.800 | 0.582–1.000 | 0.027 | 12.60 |
| GLCM_Entropy | 0.867 | 0.695–1.000 | 0.007 | 71.14 |