Which is the CT data? _0000 or _0001?

Which is the CT data? _0000 or _0001? ¶

By: tutuTU on May 28, 2024, 6:45 a.m.

Hello,

I'm looking through the training data. Are the suffixes _0000 and _0001 at the end of the PET and CT data file names random? According to the dataset structure description in the Info/Dataset tab, it says:

 |--- tracer_patient1_study1_0000.nii.gz (PET image in SUV)
 |--- tracer_patient1_study1_0001.nii.gz (CT image resampled to PET)

However, in the cases of 'fdg_0011f3deaf_03-23-2003-NA-PET-CT Ganzkoerper primaer mit KM-10445' and 'fdg_01140d52d8_08-13-2005-NA-PET-CT Ganzkoerper primaer mit KM-56839', _0000 seems to be CT data and _0001 seems to be PET data, which is different from the dataset structure description. Is there any information elsewhere that can tell whether the data in imagesTr is PET or CT?

Thanks!

Last edited by: tutuTU on May 28, 2024, 7:34 a.m., edited 2 times in total.

Re: Which is the CT data? _0000 or _0001? ¶

By: Balthasar on May 28, 2024, 3:49 p.m.

Hi,

thanks for spotting this mistake and pointing this out to us!

The suffixes should not be random, we just mixed up the description on the dataset description page. Of course, you are right, that "_0000" is a CT and "_0001" is the corresponding PET. I updated the description page with the correct information.

Best, Balthasar