Data range is changed when using "dicomread" to read singned short PET dicom image

I have many PET images,of which the orignal data range of the dicom image is: 0-32000, But When I using "dicomread" to read singned short PET dicom image,the range change to 0-4706. What's the matter with this? Then, how can I get the true original pixel value? Thanks!

Answer 1

[Caroline Jordan]

You may need to scale the PET image by the dicom tag RescaleSlope.