Table 2.
Threshold values of various Metabolic PET parameters
| Metabolic Parameters | Threshold values* | Sensitivity % | Specificity % |
|---|---|---|---|
| SUVmax (g/ml) | 18.74 | 81 | 64 |
| SUVmean (g/ml) | 10.78 | 75 | 67 |
| WBMTV2.5 (cm3) | 1038.37 | 56 | 92 |
| WBMTV41% (cm3) | 289.39 | 69 | 78 |
| WBTLG2.5 (g/ml×cm3) | 4255.89 | 50 | 84 |
| WBTLG41% (g/ml×cm3) | 1271.77 | 87 | 64 |
Abbreviations: SUV, Standardized uptake value; WBMTV, Whole Body Metabolic Tumor Volume; WBTLG, Whole Body Total Lesion Glycolysis.
*Threshold values were derived from Receiver Operator Characteristics (ROC) Curve using Youden’s Index