SecretariatMedical Imaging & Technology Alliance (MITA)
Lisa Spellman,
ChairsLawrence Tarbox, PhD, University of Arkansas for Medical Sciences
Gianluca Paladini, Siemens Healthineers
Last strategy update2018-09-26
MinutesWG-23 minutes


  • To develop DICOM specifications for interfaces between hosted application software and a DICOM host system.

Current Supplements, Work and Objectives

  • No current supplements.
  • Outstanding work item regarding an abstract model for structured reports.
  • Several suggested new use scenarios for a mechanism like Application Hosting.
  • Strong desire to use more modern, simpler technology in Application Hosting, leveraging work done in DICOMweb.
  • Desire to better support AI workflows
  • Work item for creating examples using existing mechanisms for Application Hosting

Challenges and Opportunities (Environment)

  • Ensuring that Application Hosting is of sufficient interest to the potential contributors to maintain active participation by experts, champions, vendors and clinical users.
  • Requests for future work items will be dependent on the active participation of vendors and clinicians that perceive a need to expand the DICOM Standard in a specific area.
  • Some items may require cooperation from other working groups, including WG-11 (Display), WG-17 (3D), WG-18 (Clinical Trials and Education), WG-27 (DICOMweb), all of the modality-specific working groups, and the HL-7 FHIR working group.
  • Work may require shifts in the scope of the working group.
  • Staying focused on the task at hand.
  • The mechanisms utilized could become obsolete or broken.
  • The technological landscape is constantly shifting, with various tools falling in and out of favor
  • Regulatory issues may limit the clinical utility of the Standard.
  • Specifying mechanisms that are easily incorporated and do not conflict with work done by other bodies.
  • Potential Intellectual Property issues.

Future Roadmap and Objectives (Committee Direction)

  • The working group creating examples of using DICOM web services, including the web-based Unified Procedure Step (UPS) to trigger a web-based analytic service, providing a list of DICOM objects to be analyzed, and leveraging Instance Availability Notification as well as the IHE Invoke Image Display profile.
  • An existing work item to create an abstract model for structured reports may be reconsidered.
  • Continued monitoring of potential use cases. There is concern that current DICOM mechanisms might not be adequate to cover some use cases, particularly bulk analysis of large repository data, e.g. for training deep learning neural networks.
  • The WG expects to leverage existing standards, insofar as possible. The WG has closely cooperated with HL7 in the past, and expects to continue to monitor what is happening in that space (e.g. FHIR).
  • Further flesh out use cases/scenarios where applications of Artificial Intelligence are a primary focus.

Past Work

  • Supplement 118 FT 2009
  • Application Hosting was included in the IHE Post Processing Work Flow (PPWF) profile.