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IHE Cross-Enterprise Document Sharing for Imaging (XDS-I)

IHE Cross-Enterprise Document Sharing for Imaging (XDS-I) allows authorized health care providers to electronically collect, store, manage, distribute and view patient radiology reports and images entirely in digital format. The DI Standards are the building blocks that facilitate sharing of DI information and make the information an integral part of longitudinal patient records regardless of where the images or reports are acquired or created.

IHE Cross-Enterprise Document Sharing
for Imaging (XDS-I)                                                          CAS*

  • Enables the discovery and retrieval of relevant diagnostic imaging documents (Image & Report)
  • Distributing imaging documents to authorized users/systems across a group of affiliated enterprises (Affinity Domains)


  • Improves access to DI assessment and specialty services
  • Improves access to images and reports and reduces wait times for DI services across the continuum of care
  • Provides access to a longitudinal record across the affinity domain
  • Improves quality of diagnostic services through the use of viewing tools and access to diagnostic imaging history
  • Improves quality of DI information used at the point of service
  • Improves continuity of care by facilitating collaboration among care givers and providing access to patient health information
  • Improves productivity of radiologists and technologists
  • Improves turn-around times for DI results
  • Reduces the number of unnecessary patient transfers
  • Reduces/eliminates unnecessary exams
  • Improves workflows and reporting
  • Reduces operational costs associated with the acquisition, storage, management and sharing of DI information
  • Messaging: DICOM, HL7 CDA


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* Status Definitions

Canadian Draft for Use (CDFU) - The standard has been developed but it may or may not be implemented or be in use. The standard is considered ready to be used by early adopters: however, change is probable as stakeholders begin using the standard in implementations.

Canadian Approved Standards (CAS) - The standard is in use for the purpose(s) or context(s) for which it was intended. Only those parts of the standard that have been implemented or are in use can progress for consideration as CAS. This decision point signifies that the standard has reached a level of stability and is comprehensive enough such that major changes are not expected.

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