DICOM Tags necessary for Horos?

[pp.toucher]

Hi all,

I'm trying to get my anonymization tool to support Horos.  Currently my default anonymization profile is very intrusive and basically removes everything that's unnecessary for machine learning, but people are asking to use it for anonymizing data for people using horos to view.  My default profile breaks compatibility with Horos.  Does anyone know if there is a list of tags required by Horos?

Thanks!

[Joël Spaltenstein]

Hi,

Yes, it is called the DICOM standard... make sure your anonymized files are still valid DICOM.

The spec is a bit hard to digest, but the Innolitics DICOM spec browser is much easier to work with. https://dicom.innolitics.com/ciods . Look at the IOD for the SOP class you are de-identifying to see what is required.

Things to know:

For modules - (M)anditory, (U)ser Optional

For tags within modules - 1 required, 2 required, but may be set to null, 3 optional, 1C 2C required under some condition, read the spec to see what condition.

You will note that there are extremely few required tags. Mostly UIDs and other obviously necessary stuff.

A tool that might help you is David Clunie’s DICOM validator. https://www.dclunie.com/dicom3tools/dciodvfy.html

David Clunie also has a short presentation on de-identification that might be worth looking at. https://www.dclunie.com/papers/D2_1045_Clunie_Deidentification.pdf

Cheers,

Joël

On 13 Jul 2020, at 22:40, pp.toucher <lish...@gmail.com> wrote:



Hi all,

I'm trying to get my anonymization tool to support Horos.  Currently my default anonymization profile is very intrusive and basically removes everything that's unnecessary for machine learning, but people are asking to use it for anonymizing data for people using horos to view.  My default profile breaks compatibility with Horos.  Does anyone know if there is a list of tags required by Horos?

Thanks!

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