Definition of PET Parameters
| Parameter | Description |
| Global | Used in all patients |
| SUV10mean | Mean SUV of a VOI including all bony areas with SUV ≥ 10 |
| SUV10act | Total activity of 18F-NaF in all bone uptake with SUV ≥ 10 |
| bkg | Mean SUV of noninvolved bone (a vertebral body when available); normal bone background |
| Malignant | Used only in prostate patients with malignant lesions |
| mSUV10max | Maximum SUV of all malignant lesions with SUV ≥ 10 |
| mSUV10mean | Average SUV10mean of all malignant lesions with SUV ≥ 10 |
| mSUV10act | Total 18F-NaF activity in all malignant lesions with SUV ≥ 10 (an estimate of total metastatic burden) |
| Normalized | Used only in prostate patients with malignant lesions |
| mSUV10max:bkg | Maximum SUV of all malignant lesions divided by mean SUV of normal bone |
| mSUV10act:bkg | Total activity in all malignant lesions divided by mean SUV of normal bone |