# Is DICOM to NIFTI a fully anonymised file in Slicer?

**URL:** <https://discourse.slicer.org/t/is-dicom-to-nifti-a-fully-anonymised-file-in-slicer/13347>\
**Category:** Support\
**Created:** [September 5, 2020, 9:53am UTC](https://discourse.slicer.org/t/is-dicom-to-nifti-a-fully-anonymised-file-in-slicer/13347 "2020-09-05T09:53:53Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [September 6, 2020, 5:43pm UTC](https://discourse.slicer.org/t/is-dicom-to-nifti-a-fully-anonymised-file-in-slicer/13347/5 "2020-09-06T17:43:03Z")

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> [@kt297](#):
>
> I assume CT DICOM to NIFTI conversion sufficiently anonymise personalised patient data

For most study protocols, conversion to nifti or nrrd is enough. If anonymization requirements are very strict (for example require changing the image origin or blurring of patient face) then you need to do extra steps to fulfill those.

> [@Preserve image rescale and slope when saving in NRRD file](https://discourse.slicer.org/t/preserve-image-rescale-and-slope-when-saving-in-nrrd-file/13357/1):
>
> one core problem with DICOM to NRRD conversion is that NRRD is unable to preserve [rescale intercept (0028,1052) and slope (0028,1053)](https://blog.kitware.com/dicom-rescale-intercept-rescale-slope-and-itk/)

This is a good point and it would be interesting to discuss it further. I’ll move your post to a new topic.

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