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Test Import Quarantine

Marc Modat edited this page Nov 20, 2020 · 1 revision

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User Test: Import Quarantine

Background

The “protocol” determines what type of data is allowed into the hospital project of DASHER. Only allowed files will be available for anonymisation and synchronisation – other files will be sent to a quarantine project. This mechanism can be utilised for instance to prevent data from modalities that are known to burn patient data into the images (such as some ultrasound machines) to inadvertently being insufficiently anonymised. At the moment DASHER only pseudonymises header information and not pixel data directly.

For this test we will be using MR data which is known not to have patient information burnt into the image data. Hence moving it out of the QUARANTINE project can be safely done.

Test

  • Modify the protocol such that it sends data from a Siemens Magnetom “Aera” into the quarantine project as described here. Edit the protocol of DASHER so that it has the following contents:
0008,0060   Modality                ALL
0008,1090   ManufacturersModelName  Aera
  • Restart the tomcat server and leave sufficient time for the changes to take effect.
  • Import the MR-dataset available in the folder [user_test_data_dir]/importForQuarantine either via the observed import folder or via a DICOM push into DASHER.
  • Monitor the import progress in the prearchive and see how the incoming data is destined for the QUARANTINE project.
  • When the session was successfully archived into the QUARANTINE project, navigate to that session.
  • In a realistic clinical workflow at this stage you would validate that the image data contained in the quarantined session does not contain burnt-in patient information. Here we know that this is not the case and can proceed.
  • To move the quarantined session out of the QUARANTINE project into the hospital project, [follow the instructions provided here](Admin%20The QUARANTINE Project). Note, that the subject will remain listed in the QUARANTINE project, but without any session.

  • Now, please revert the behaviour of DASHER to its default, i.e. no data is being sent to the QUARANTINE project. To do this modify the protocol as described here such that its contents is:
0008,0060   Modality                ALL
0008,1090   ManufacturersModelName  ALLOW ALL

Results

Session redirected to QUARANTINE project in the prearchive

image

Session archived into the QUARANTINE project

image

Relocated session in hospital project

image

Import of MR-data after reverting to default protocol

image


Next User Test: Pseudonymise with edits

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