View source for XDR-I

__NOTOC__

==1. Proposed Workitem: XDR-I ==

* Proposal Editor: Chris Lindop
* Editor: Chris Lindop 
* Date:    N/A (Wiki keeps history)
* Version: N/A (Wiki keeps history)
* Domain: Radiology
[[Category:RAD]]

==2. The Problem==
Currently, Imaging has no payload which would allow for the push of images outside of an enterprise environment.  IHE ITI has a transport protocol called XDR which serves well for non-imaging payloads.  It is compatible with the Security and Privacy protocols developed by the IHE ITI domain.  The XDS-I.b protocol breaks the content profile into 2 components.  The first component is designed essential as a notification of where to pull the content.  Usage of the XDR transport protocol should not require this notification/pull architecture, but just the push model.  It should remove the requirement for a source to be a cross enterprise source of Images.

The value for this capability would allow for a less sophisticated system to be a source of images.  An XDR-I image source could be as low cost as a workstation.  Additional value could be to use the XDR-I webservices as an XDS-I.b proxy with a regional XDS-I.b source.  Currently, when an XDS-I.b Image Document Source provides & register images on behalf of a local facility, there is no mechanism to provide feedback to the originating source.  This would allow for an XDS-I.b Image document source to use the response of the XDR transport services to provide success or failure status back to the originatting source of the images.

==3. Key Use Case==

The potential use cases can be fairly robust.  
:#A workstation providing images to a regional image repository.  
:#Sending images to a referring clinician without the use of CD media.  
:#Submitting images for a clinical trial,  Submitting Dose reports to a National registry.  
:#Connecting a Hospital or Clinical practice PACS to a Regional Repository that is an XDS-I.b Image Document Source .  
Just to name a few.  The additional value add could include 


==4. Standards and Systems==

Existing Standards
:# ITI XDR
:# Rad XDS-I.b
:# Soap 1.2
:# DICOM
Existing Systems
:#Workstations
:# Acquisition Modalities
:# PACS and Enterprise Archives
:# Regional PACS and Archives
:# Regional and Enterprise RIS

==5. Discussion==

Another group which would be interested in the development of this profile is WG 27. However, the expertise with the ITI profiles is with IHE.  I do reccomend that IHE develops this profile for the Web services "push" of images in collaboration with WG 27.