Table 3.
Tumor/lesion SUV measurements at 24 and 48 hours, tumor to background (TBR) ratios at 24 and 48 hours, and tumor to blood pool (T:Blood Pool) ratios at 24 and 48 hours
| Tumor Type | Patient no. | Lesion SUVmax 24 hrs | Lesion SUVmax 48 hr | TBR 24 hrs | TBR 48 hrs | T:Blood Pool 24 hrs | T:Blood Pool 48 hrs |
|---|---|---|---|---|---|---|---|
| High Grade | 1 | 1.719 | 1.828 | 7.21 | 9.12 | 1.18 | 1.42 |
| 2 | 5.334 | 5.225 | 13.05 | 13.17 | 3.67 | 3.75 | |
| 4 | 2.107 | 2.214 | 3.46 | 5.17 | 2.28 | 2.44 | |
| 9 | 3.666 | 2.931 | 9.35 | 8.45 | 2.34 | 2.25 | |
| 11 | 2.476 | 2.625 | 7.42 | 10.78 | 6.16 | 7.50 | |
| Low Grade | 3 | - | - | - | - | - | - |
| 6 | 4.816 | 3.629 | 15.42 | 13.52 | 4.27 | 3.34 | |
| Benign treatment related change | 5 | - | - | - | - | - | - |
| 7 | 1.502 | 1.486 | 5.33 | 5.72 | 0.79 | 0.96 | |
| 10 | 2.796 | 2.203 | 4.76 | 4.04 | 1.96 | 1.81 | |
| 12 | - | - | - | - | - | - | |
| Indeterminate | 8 | - | - | - | - | - | - |
TBR is calculated by using tumor/lesion SUVmax and dividing by contralateral normal brain background SUVmean value. T:Bood Pool is calculated by using tumor/lesion SUVmax and dividing by blood pool SUVmean from placing a region of interest in the posterior sagittal sinus near the confluence of sinuses.