Events:August2008XNATDesktop

Plans for the Integration of XNAT desktop and Slicer

Visit of XNAT team to Boston

• Tentative Date: August 21-22nd
• Location: 1249 Boylston Street, 2nd floor demo room Directions to 1249 Boylston
• Agenda/Goals
  • Attempt to get base use case worked through
    • upload files to XND
    • query for them
    • download them as a group
    • modify them in slicer
    • re-upload new files with tags
  • Thursday 10am Eastern discussion with Dan Blezek about intersection with XCEDE web services implementation.

• • XND User Interface Review with Wendy
• People: Misha, Kevin, Wendy, Nicole, Steve, Ron (Thursday)

Other Topics

Misha to meet with Bernhard about deidentification algorithms for full body CT scans.

Use-case scenarios

External examples

• 

  The available images are displayed as small icons with annotation. User drags images to the display port.

• 

  Available date is displayed in an hierarchical text and icon representation

Use Scenario 1

• I am using Slicer on my laptop and would like to use XNAT desktop to keep data organized on my hard disk

Capabilities needed

• • how to set up when I download slicer?
  • I am upgrading Slicer do I need to upgrade xnat as well?
  • I worked today on a case. I would like to add my derived data and new mrml file to the existing stuff.
  • I would like to upload stuff that is currently in Slicer
  • I would like to download a mrml file and all associated data files.

notes:

See use case for discussion (XNAT tools extension): Slicer use case (similar to above).

Also see XNAT Desktop tutorial for Slicer.

• StoreXAR doesn't currently have this functionality
• Tim's suggested workaround for now: separately request a catalog of all files for a given session id. This is similar to what would be returned by StoreXAR as described in the use case.
• log into central.xnat.org and click this link to see catalog
• There's not currently a commandline executable -- we will have to write this.
• The HTTP Session ID needs to be attached to the HTTP Request.

technical questions:

• What are preferred ways to access web services – such as e.g. shell scripts calling cURL, some preferred C++ web client, Python or Java programs?
• What are requirements for XNAT File Repository web services security model?
• What would be a typical workload for various types of queries to XND (XNAT Desktop) repository - including seach, file put and file get?
• Currently, XNAT Desktop supports single file manipulation. Should it, (and if it should, then to what extent?) support treating a set of files as a single 'bundle' (for instance, "MRML file and all associated files")? What criteria should it support to automatically identify a set of files as belonging to one bundle?
• Will XNAT Desktop have to use Slicer ontology for basic tags (Project, Subject, Experiment, Scan) or will Slicer adopt, to some extent, XNAT ontology? (XNAT ontology is required to be used by Desktop when interacting with hosted XNAT Enterprise server).

Reference

http://slicer.spl.harvard.edu/slicerWiki/index.php/Slicer3:XCEDE_use_cases#XCEDE_REST_Interface