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).
1. Required data in DICOM
General Tags
| Tag | 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 | 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 |
2. SUV formula
Main Formulas
Body Weight (SUV bw)
SUV bw =
[1]
Body Surface Area (SUV bsa)
SUV bsa =
[1]
Lean Body Mass (SUV lbm)
SUV lbm =
[2]
Factors of Formula
Body Surface Area
BSA =
Lean Body Mass
Male =
Female =
Decay Correction
DecayCorrection =
Time Gap
TimeGap =
If Decay Correction(0054,1102) is ADMIN, TimeGap is 0.
If GE private tag has, Scan Time is with its value.PET Image Pixels
PETImagePixels =
[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