Error in Mediso Dynamic PET Conversion

rordenlab / dcm2niix

dcm2nii DICOM to NIfTI converter: compiled versions available from NITRC

https://www.nitrc.org/plugins/mwiki/index.php/dcm2nii:MainPage

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Error in Mediso Dynamic PET Conversion #853

Open QinQikai opened 3 weeks ago

QinQikai commented 3 weeks ago

Hi,

I met a problem when I use dcm2niix (v1.0.20240202 and v1.0.20240812) to convert Mediso Dynamic PET DICOM to NIfTI. The output images are in the wrong order. It seems dcm2niix cannot recognize “(0020,9057) InStackPositionNumber” and “(0020,9128) TemporalPositionIndex".

In addition, each DICOM frame has its own “(0028,1053) RescaleSlope”. When I use dcm2niix (v1.0.20220720), it seems only use the first slope value. I am wandering if it was fixed in the latest version.

Thank you!

neurolabusc commented 3 weeks ago

dcm2niix should be able to use enhanced DICOM ordering. It does handle variable rescale slopes, but this feature is specific to Philips as I have not seen it in use by other manufacturers. If you want me to investigate changing the behavior of the software, you will need to share a concrete example with my institutional email. Alternatively, create a pull request that handles these images.