Table 2. The ADC values and PET-related parameters according to TSR.
| Image parameters | TSR | P value | |
|---|---|---|---|
| Stroma high (n=41) | Stroma low (n=25) | ||
| ADCmean (×10−3 mm2/s) | 813.54±88.68 | 879.92±133.18 | 0.018 |
| ADCmin (×10−3 mm2/s) | 660.71±136.05 | 648.44±185.15 | 0.758 |
| SUVmean | 9.35±4.21 | 9.89±5.20 | 0.647 |
| SUVmax | 15.2±6.64 | 16.45±8.86 | 0.546 |
| MTV | 11.5±8.23 | 11.15±7.88 | 0.865 |
| TLG | 109.65±90.80 | 112.73±101.30 | 0.899 |
Data given as the mean ± SD. ADC, apparent diffusion coefficient; PET, positron emission tomography; TSR, tumor-stroma ratio; SUV, standard uptake value; MTV, metabolic tumor volume; TLG, total lesion glycolysis; SD, standard deviation.