IHERO 2007UseCase Instance-level Query Retrieve

Instance-Level Query/Retrieve

• RT objects from archive – review draft query key document from IHE-RO/TC meeting April 2006

• Issues
  • Object (plan) linkage
  • Revision management
  • Query keys currently inadequate for RT objects

1. Proposed Workitem: Definition of RT Objects specific Query / Retrieve Keys

• Proposal Editor: Rishabh Kapoor
• Editor: Rishabh Kapoor
• Date: N/A (Wiki keeps history)
• Version: N/A (Wiki keeps history)
• Domain: Radiation Oncology

2. The Problem

An RT Archive (PACS in the Radiation Oncology Domain) is indispensable member in a clinical workflow for the establishment of medical informatics research related to outcomes for future radiation therapy patients. It is also a system where all the patient data (Images, Plans, Dose, Structures) are securely stored. In order to retrieve the data for review / re-plan / reprocess for a follow up or provide to do research and do data mining there is a need for Query Key parameters to be passed on to the Archive in order for it to send out the objects which are matching the keys.

In IHEs other domains (Radiology, Eye Care, Cardiology) there is a list of Query keys which are required by PACS or Archive systems to support. This list of parameters can identify a patient, its study and series. In addition to these keys there are more specific keys defined for retrieving specific DICOM objects (Key Image Notes, Presentation states etc). For more information on this please refer to the IHE Radiology Technical Framework Vol 2.

In Radiation Oncology specific keys on which searching can be carried out in an RT Archive is not defined.

3. Key Use Case

How it should work:

4. Standards & Systems

  Affected systems:

• Treatment planning systems, virtual simulation system, record & verify systems, CT, Picture Archive and Communication Systems (RT Archive – it is not picture anymore).

Related stuff:

• IHE Radiology Technical Framework.