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.
This application provides the following SUV types
SUV Body Weight (SUV bw)
SUV Lean Body Mass (SUV lbm)
SUV Body Surface Area (SUV bsa)
Note
N/A will be displayed in the event that SUV calculations are not available (e.g. due to missing DICOM attributes).
Required DICOM Data
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 |
| (0008,0022) | DA | 1 | Acquisition Date |
| (0008,0032) | TM | 1 | Acquisition Time |
| (0028,0051) | CS | 1 - n | Corrected Image |
| (0054,1102) | CS | 1 | Decay Correction |
| (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 | |
| (0018,1074) | DS | 1 | Radionuclide Total Dose | |
| (0018,1078) | DT | 1 | Radiopharmaceutical Start DateTime | |
| (0018,1072) | TM | 1 | Radiopharmaceutical Start Time | |
| (0018,1075) | DS | 1 | Radionuclide Half Life |
Manufacture’s Tags
| Tag | VR | VM | Description |
|---|---|---|---|
| (0009,100D) | TM | 1 | Scan Time for GE (private tag) |
| (7053,1000) | DS | 1 | SUV Scale Factor for Philips |
| (7053,1009) | DS | 1 | Activity Concentration Scale Factor for Philips |
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
If Decay Correction (0054,1102) is 'ADMIN', Time Gap is 0.
If GE private tag has a valuepresents, Scan Time is with its value.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