Table 2. MTVs of skeletal lesions with the SUV threshold of 2.5 measured in PET using 11C-acetate and 18F-FDG.
Data are presented as mean ± SD and range unless otherwise specified.
FDG, fluorodeoxyglucose; MTV, metabolic tumor volume; SUV, standardized uptake value
| Lesion location | 11C-acetate (mL) | 18F-FDG (mL) | p-value |
| Cervical | 0.56 ± 0.68(0-1.91) | 0 ± 0 | 0.1 |
| Thoracic | 36.2 ± 27.4 (1.00-73.1) | 0 ± 0 | 0.016 |
| Lumbar | 37.2 ± 30.4 (0-77.11) | 3.84 ± 9.41 (0-26.9) | 0.036 |
| Cranial | 0.12 ± 0.21 (0-0.57) | 0 ± 0 | 0.371 |
| Humerus | 0.48 ± 1.14 (0-3.26) | 0 ± 0 | 0.371 |
| Forearm | 0.04 ± 0.07 (0-0.20) | 0 ± 0 | 0.371 |
| Scapula | 0.08 ± 0.19 (0-0.53) | 0 ± 0 | 1 |
| Clavicle | 0.68 ± 1.21 (0-3.39) | 0 ± 0 | 0.371 |
| Ribs | 0.56 ± 1.15 (0-3.36) | 0 ± 0 | 0.098 |
| Sternum | 3.44 ± 6.29 (0-18.2) | 0 ± 0 | 0.181 |
| Pelvis | 47.8 ± 66.9 (0-207) | 0.09 ± 0.21 (0-0.60) | 0.036 |
| Femur | 1.88 ± 2.14 (0-5.62) | 0 ± 0 | 0.1 |
| Total | 129 ± 109 (2.27-345) | 3.93 ± 9.38 (0-26.90) | 0.016 |