dropping fields I asked it to keep

[dmd]

dicom-anonymizer seems to be deleting some dicom fields, even if asked to keep them:

$ dcmdump input.dcm | grep 0029,0010
(0029,0010) LO [SIEMENS CSA HEADER]                     #  18, 1 PrivateCreator

$ dicom-anonymizer input.dcm output.dcm -t '(0x0029,0x1010)' keep
100%|███████████████████████████████████████████████████████████████████████████████████| 1/1 [00:00<00:00, 18.67it/s]

$ dcmdump output.dcm | grep 0029,0010

$

[laurennlam]

It's possible that this tag is a private tag. Private tags are always deleted for anonymization.
cf line 247 of simpledicomanonymizer.py

[dmd]

Yes, it is. That's annoying, as it breaks conversion to Nifti later

[laurennlam]

Hi @dmd, Sorry for the late answer. So, after checking, it seems that all private tags are mandatory removed.
We can pass through that but, I want to warn you about possible changing:

• Private tags have a "Private creator" such as (0029, 0020). These private tags are heads of blocks that contain sub private tags (0029, 1008), (0029, 1009),...).
• if you want to keep a private creator, then all subtags will be removed and you'll have to manually define which one you want to keep/modify
• if you manually define that you want to only keep a sub element, then you will have a Private Creator then. Sub private element of a block cannot "lives" without a creator.
  Does this sound good to you ?

[dmd]

Yes, that's reasonable!

[laurennlam]

#11