Table 2.
Mean values of (PET/CT measurements)/(PET/MRI measurements) and Spearman’s correlation coefficient
| PET/CT | PET/MRI | (PET/CT)/(PET/MRI) | r | p | |
|---|---|---|---|---|---|
| SUVmax | 11.7 ± 6.75 | 7.87 ± 4.38 | 1.51 ± 0.29 | 0.924 | < 0.001 |
| SUVpeak | 8.33 ± 5.07 | 6.03 ± 3.90 | 1.44 ± 0.29 | 0.933 | < 0.001 |
| MTV50% | 4612.9 ± 9720.8 | 5600.6 ± 10463.9 | 0.82 ± 0.33 | 0.913 | < 0.001 |
| TLG50% | 42468.5 ± 102887.4 | 39938.1 ± 96771.9 | 1.18 ± 0.45 | 0.932 | < 0.001 |
| TLRmax | 5.26 ± 3.20 | 5.33 ± 3.10 | 1.00 ± 0.22 | 0.924 | < 0.001 |
| TBRmax | 1.47 ± 0.91 | 1.51 ± 0.96 | 1.01 ± 0.21 | 0.929 | < 0.001 |
CT, computed tomography; MRI, magnetic resonance imaging; PET, positron emission tomography; SUV, standardized uptake value; MTV, metabolic tumor volume; TLG, total lesion glycolysis; TLRmax, maximum tumor-to-liver ratio; TBRmax, maximum tumor-to-brain ratio.