The standardized uptake value (SUV) formulas are used in positron emission tomography (PET) analysis. Radiotracer concentration can be measured for any area-based region of interest (ROI) such as circle, square, polygon, etc. The SUV formulas depend on certain attributes in the DICOM image without which SUV values cannot be calculated.
OnePacs Web Viewer provides the following SUV types
Body Weight (SUV bw)
Body Surface Area (SUV bsa)
- Lean Body Mass (SUV lbm)
N/A will be displayed in the event that SUV calculations are not available (e.g. due to missing DICOM attributes).
SUV calculations can independently be shown/hidden by User Preferences
Required DICOM Attributes
General Tags
| Tag | VR | VM | Description |
|---|---|---|---|
| (0010,0040) | CS | 1 | Patient’s Sex |
| (0010,1020) | DS | 1 | Patient’s Size |
| (0010,1030) | DS | 1 | Patient’s Weight |
| (0008,0021) | DA | 1 | Series Date |
| (0008,0031) | TM | 1 | Series Time |
| (0054,1001) | CS | 1 | Units |
| (0028,1052) | DS | 1 | Rescale Intercept |
| (0028,1053) | DS | 1 | Rescale Slope |
Radiopharmaceutical Information Sequence
| Tag | Tag | VR | VM | Description |
|---|---|---|---|---|
| (0054,0016) | SQ | 1 | Radiopharmaceutical Information Sequence | |
| (0018,1072) | TM | 1 | Radiopharmaceutical Start Time | |
| (0018,1074) | DS | 1 | Radionuclide Total Dose | |
| (0018,1075) | DS | 1 | Radionuclide Half Life |
SUV formulas
Main Formulas
Body Weight (SUV bw)
[1]
Body Surface Area (SUV bsa)
[1]
Lean Body Mass (SUV lbm)
[2]
Factors of Formulas
Body Surface Area (BSA)
Lean Body Mass (Male)
Lean Body Mass (Female)
Decay Correction
Time Gap
Scan Time is considered as Series Time
PET Image Pixels
[1]: Calculation of SUV bw and SUV bsa are according to the following equations, taken from Kim et al. Journal of Nuclear Medicine. Volume 35, No. 1, January 1994. pp164-167
[2]: Calculation of SUV lbm is according to Sugawara et al. Radiology, November 1999. pp 521-525