Projects:RegistrationDocumentation:Anonymization

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  • all shared data-sets must be anonymized before we can post them.
  • Sharing anonymized data in most cases is IRB exempt based on Code of Federal Regulations 45 CFR 46.101(b), which lists as exemption category 4:
 Unless otherwise required by department or agency heads, [...] the following categories are exempt [...]: 
4.Research involving the collection or study of existing data, documents, records , pathological specimens, or diagnostic specimens, if these sources are publicly available or if the information is recorded by the investigator in such a manner that subjects cannot be identified, directly or through identifiers linked to the subjects.

1. Load Your Image Data into 3DSlicer

  • if you have not yet done so, download a recent version of 3DSlicer: 3DSlicer Download
  • load all images (fixed/reference and moving) into slicer. For a tutorial see:

2. View and Verify

  • make sure data is complete (all the slices, fixed reference image and all moving images that are to be aligned

3. Save as NRRD

  • From the File menu, select Save
  • click on the second button from the right to select all images for saving, or check all the boxes in the Select column
  • if not already selected as default, choose NRRD (.nrrd) from the pulldown menu in the file format column
  • select a new output directory by clicking on the icon next to Change Destination for All Selected'.
  • click on Save Selected

Notes

  • if you are unsucessful in anonymizing the data as described above, let us know and we'll walk you through it.
  • for some high-resolution structural head MRI we may have apply additional "defacing" (i.e. masking of image parts of the face and/or ears) before posting. This removal applies only to image content of facial features that might be recognizable as a 3D rendering. We will do this for you. Only the defaced data is kept.