Table 3 Definitions of quantitative FDG measurements
Measure | Definition | Notes |
|---|---|---|
Standardized Uptake Value (SUV) [30] | Relative tissue FDG uptake adjusted for amount injected and body weight | Variable based on injected tracer, time of uptake |
SUVmax[30] | Hottest pixel in defined region of interest (ROI) | Â |
SUVmean[30] | Average SUV within a ROI | May vary depending on operator definition of ROI |
Total volume of lesion pixels exceeding a threshold value | Dependent on definition of ROI | |
Total Lesion Glycolysis (TLG) [32] | Product of MTV and SUVmean | Â |