CP-2458 De-identification of Group 0004 data elements and DICOMDIR Status March 2025 Voting Packet Date of Last Update 2025/01/21 Person Assigned David Clunie Submitter Name Laura Kelly Opsahl-Ong Submission Date 2024/09/18 Correction Number CP-2458 Log Summary: De-identification of Group 0004 data elements and DICOMDIR Name of Standard PS3.15 Rationale for Correction: The DICOMDIR File can be recreated from the de-identified files or itself be de-identified. Group 0004 data elements should not occur in other instances than the DICOMDIR File so always need to be removed if encountered. Correction Wording: <informaltable rules="all" frame="box"> <tr> <td> <para><emphasis role="italic">Amend DICOM PS3.15 as follows (changes to existing text are bold and <emphasis role="bold"><emphasis role="underline" >underlined</emphasis></emphasis> for additions and <emphasis role="bold" ><emphasis role="strikethrough">struckthrough</emphasis></emphasis> for removals):</emphasis></para> </td> </tr> </informaltable> <section label="3" status="1" xml:id="chapter_3"> <title>Definitions <emphasis role="underline">DICOM Media Storage and File Format Definitions</emphasis> This Part of the Standard makes use of the following terms defined in : DICOMDIR File . File-set .
Application Level Confidentiality Profile ...
De-identifier .: ... ... ... ... ... ... If the Dataset being de-identified is being stored within a DICOM File, then the File Meta Information including the 128 byte preamble, if present, shall be replaced with a description of the de-identifying application. Otherwise, there is a risk that identity information may leak through unmodified File Meta Information or preamble. See . This includes information regarding Application Entity Titles, Presentation Addresses, implementation information, and private information. If the Dataset being de-identified is being communicated by DICOM Real-Time Video, then the File Meta Information including the 128 byte preamble, if present, shall be replaced with a description of the de-identifying application. Otherwise, there is a risk that identity information may leak through unmodified File Meta Information or preamble. See . This includes information regarding Application Entity Titles, Presentation Addresses, implementation information, and private information. All group 0004H Data Elements shall be removed from any instance other than a DICOMDIR file. If a DICOMDIR File is required, it shall either be created from the de-identified files it references, or an existing DICOMDIR File shall be de-identifed according to this Profile. Any existing non-de-identified DICOMDIR File shall be removed from the File-set.