Page History

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 Data

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

formulas

Main Formulas
- Body Weight (SUV _bw)

SUV _bw =

- $PET Image Pixels \times \frac{Weight(g)}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]
- Body Surface Area (SUV _bsa)

SUV _bsa =

- $PET Image Pixels \times \frac{BSA}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]
- Lean Body Mass (SUV _lbm)

SUV _lbm =

- $PET Image Pixels \times \frac{LBM \times 1000}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [2]
Factors of

Formula

Formulas
- Body Surface Area (BSA)

BSA =

- $Weight(kg)^{0.425} \times Height(cm)^{0.725} \times 71.84$ Image Modified
- Lean Body Mass (Male)

Male =

- $(1.10 \times Weight(kg)) - (120 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified

Female =

- Lean Body Mass (Female)
  $(1.07 \times Weight(kg)) - (148 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified
- Decay Correction

DecayCorrection =

- $2^{(\frac{-TimeGap}{Radionuclide Half Life})}$ Image Modified
- Time Gap

TimeGap =

- $Scan Time - Radiopharmaceutical Start Time$ Image Modified
  If Decay Correction(0054,1102) is 'ADMIN',

TimeGap

- Time Gap is 0.
  If GE private tag has a value, Scan Time is with its value.
- PET Image Pixels

PETImagePixels =

- $Rescale Slope \times Pixels + Rescale Intercept$ Image Modified

[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

Child pages

Versions Compared

Old Version 1

New Version 2

Key

Required

DICOM Data

General Tags

Radiopharmaceutical Information Sequence

Manufacture’s Tags

SUV

formulas

Main Formulas

Body Weight (SUV _bw)

$PET Image Pixels \times \frac{Weight(g)}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]

Body Surface Area (SUV _bsa)

$PET Image Pixels \times \frac{BSA}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]

Lean Body Mass (SUV _lbm)

$PET Image Pixels \times \frac{LBM \times 1000}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [2]

Factors of

Formulas

Body Surface Area (BSA)

$Weight(kg)^{0.425} \times Height(cm)^{0.725} \times 71.84$ Image Modified

Lean Body Mass (Male)

$(1.10 \times Weight(kg)) - (120 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified

Lean Body Mass (Female)

$(1.07 \times Weight(kg)) - (148 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified

Decay Correction

$2^{(\frac{-TimeGap}{Radionuclide Half Life})}$ Image Modified

Time Gap

$Scan Time - Radiopharmaceutical Start Time$ Image Modified

PET Image Pixels

$Rescale Slope \times Pixels + Rescale Intercept$ Image Modified

Child pages

Page History

Versions Compared

Old Version 1

New Version 2

Key

Required

DICOM Data

General Tags

Radiopharmaceutical Information Sequence

Manufacture’s Tags

SUV

formulas

Main Formulas

Body Weight (SUV bw)

Image Modified [1]

Body Surface Area (SUV bsa)

Image Modified [1]

Lean Body Mass (SUV lbm)

Image Modified [2]

Factors of

Formulas

Body Surface Area (BSA)

Image Modified

Lean Body Mass (Male)

Image Modified

Lean Body Mass (Female)

Image Modified

Decay Correction

Image Modified

Time Gap

Image Modified

PET Image Pixels

Image Modified

Body Weight (SUV _bw)

$PET Image Pixels \times \frac{Weight(g)}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]

Body Surface Area (SUV _bsa)

$PET Image Pixels \times \frac{BSA}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [1]

Lean Body Mass (SUV _lbm)

$PET Image Pixels \times \frac{LBM \times 1000}{Radionuclide Total Dose \times Decay Correction}$ Image Modified [2]

$Weight(kg)^{0.425} \times Height(cm)^{0.725} \times 71.84$ Image Modified

$(1.10 \times Weight(kg)) - (120 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified

$(1.07 \times Weight(kg)) - (148 \times (\frac{Weight(kg)}{Height(cm)})^{2})$ Image Modified

$2^{(\frac{-TimeGap}{Radionuclide Half Life})}$ Image Modified

$Scan Time - Radiopharmaceutical Start Time$ Image Modified

$Rescale Slope \times Pixels + Rescale Intercept$ Image Modified