Table 6. Inter- and intra-observer variability of image parameters.
| Image parameters | Intra-observer (n=66) | Inter-observer (n=66) | |||
|---|---|---|---|---|---|
| ICC | 95% CI | ICC | 95% CI | ||
| ADCmean | 0.873 | (0.793, 0.922) | 0.792 | (0.609, 0.883) | |
| ADCmin | 0.935 | (0.894, 0.960) | 0.911 | (0.855, 0.946) | |
| SUVmean | 0.999 | (0.999, 1.000) | 0.997 | (0.995, 0.998) | |
| SUVmax | 1.000 | (1.000, 1.000) | 1.000 | (1.000, 1.000) | |
| MTV | 0.999 | (0.999, 1.000) | 0.996 | (0.993, 0.998) | |
| TLG | 1.000 | (0.999, 1.000) | 0.999 | (0.998, 0.999) | |
All P<0.001. ICC, intraclass correlation coefficient; CI, confidence interval; ADC, apparent diffusion coefficient; SUV, standard uptake value; MTV, metabolic tumor volume; TLG, total lesion glycolysis.