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Project Summary:

The Cancer Imaging Program's informatics team were in need of a standards based de-idenfication procedure for images that are being submitted to the National Biomedical Imaging Archive (NBIA).  In February of 2009 we contacted David Clunie for input on this and he directed us to the DICOM Working Group 18 draft of Supplement 142.  CIP then gathered a small group of industry experts to discuss how this could be implemented in the RSNA's Clinical Trial Processor (CTP) software.  Below is a summary of important dates and milestones:

  • Date Started:  February 13, 2009
  • April 2009 - Software development completed to generate, apply, and modify "profiles" in CTP
  • April 2009 - "Basic Profile" implementation completed by the project participants and included as default CTP anonymization script (Finalized CTP Anonymization Profile - Basic)
  • December 2009 - "option" scripts completed by Justin Kirby
  • January 2010 - New "NBIA Default" profile designed by Justin Kirby to best fit the needs of those using CTP to submit to NBIA
    • Includes foundation of S142 Basic Profile
    • Adds options for RetainDeviceInfoand KeepDescriptions
    • Includes NBIA-specific Parameters values
    • Implements additional tweaks to help catch burned in PHI in image pixels (ImageType checked for "SCREEN SAVE" value and BurnedInAnnotation tags checked for "YES" value)

Project Goals:

  1. Generate CTP-readable templates based on the guidelines in  DICOM Working Group 18, Supplement 142
  2. Create a release of CTP that will allow easy access to and management of these templates, and script files derived from these templates.

Principal Project Participants:

  • Jay Gaeta
  • John Perry
  • Justin Kirby
  • Carl Jaffe
  • John Freymann

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