>>>>> "amagri" == amagri <
[hidden email]> writes:
> This is not exactly an imageJ related question, but does
> anyone know what type of units PET images as DICOMs are
> displayed in? I ask because I plan on making a plugin to
> convert the images to units of SUV.
The image intensity should be calculated as
intensity = pixel_value * Rescale_Slope + Rescale_Intercept
The units should then be whatever is in the Units tag. On recent
CTI/Siemens scanners, they are often Bq/ml. Here are some
relevant bits from a sample image from a biograph-16:
0008,0008 Image Type: ORIGINAL\PRIMARY
0008,0060 Modality: PT
0008,0070 Manufacturer: CPS
0008,1090 Manufacturer's Model Name: 1080
0010,1030 Patient's Weight: 85.806
0028,1052 Rescale Intercept: 0
0028,1053 Rescale Slope: 5.7729044
0028,1054 Rescale Type: BQML
This is from ImageJ's show info command. The additional tags
that you'll need are the "Radiopharmaceutical Information
Sequence" (0x0054,0x0016) and the "Decay Correction" method
(0x0054,0x1102). I have never seen a PET header that includes
height, so I suspect you will not be able to do the lean body
mass correction without additional input.
Mike
Locked
