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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
TagVRVMDescription
(0010,0040)CS1Patient’s Sex
(0010,1020)DS1Patient’s Size
(0010,1030)DS1Patient’s Weight
(0008,0021)DA1Series Date
(0008,0031)TM1Series Time
(0054,1001)CS1Units
(0028,1052)DS1Rescale Intercept
(0028,1053)DS1Rescale Slope
  • Radiopharmaceutical Information Sequence
TagTagVRVMDescription
(0054,0016) SQ1Radiopharmaceutical Information Sequence
 (0018,1072)TM1Radiopharmaceutical Start Time
 (0018,1074)DS1Radionuclide Total Dose
 (0018,1075)DS1Radionuclide Half Life

SUV formulas

  1. Main Formulas

    • Body Weight (SUV bw)
      [1]
    • Body Surface Area (SUV bsa)
      [1]
    • Lean Body Mass (SUV lbm)
      [2]
  2. Factors of Formulas

    • Body Surface Area (BSA)
    • Lean Body Mass (Male)
    • Lean Body Mass (Female)
    • Decay Correction
    • Time Gap
      Scan Time - Radiopharmaceutical Start Time

      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

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