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DICOM and Integrating the Healthcare Enterprise:

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Title: DICOM and Integrating the Healthcare Enterprise:


1
DICOM andIntegrating the Healthcare Enterprise
  • Five years of cooperation and mutual influence

Andrei Leontiev Chair, DICOM WG6 IDX
Charles Parisot Chair, NEMA Committee
for advancement of DICOM GE Medical Systems-IT
2
IHE Mission
  • IHE is an initiative promoting and supporting the
    integration of systems in the healthcare
    enterprise.

3
IHE Integration Goals
  • Improve the efficiency and effectiveness of
    clinical practice
  • Improve Workflow
  • Improve Information Accuracy
  • Improve Information Availability
  • Enable Cross-System Functionality

4
A Proven Standards Adoption Process
IHEDemonstration
IHEConnectathon
Easy to Integrate Products
Product With IHE
IHETechnicalFramework
Standards
IHEIntegration Profiles B
IHEIntegration Profile A
User Site
RFP
  • IHE Integration Profiles
  • Detailled selection of standards and options each
    solving a specific integration problem
  • A growing set of effective provider/vendor agreed
    solutions
  • Vendors can implement with ROI
  • Providers can deploy with stability

5
IHE Integration profiles
6
IHE IT Infrastructure5 Integration Profiles
7
IHE Growth
  • Radiology
  • 5 years Extensive integration with IT
  • IT Infrastructure
  • 1 Year Strong start with critical
    infrastructure issues addressed authentication,
    linking patient ids, CCOW, retrieve info for
    display. HIMSS Feb 2004 HL7-IHE Joint Demo.
  • Laboratory
  • 1 year Lab Scheduled Workflow goes to public
    comment Oct 15th for demos mid 2004.
  • Cardiology
  • ACC and ESC have solid plans launch imminent.

Strong influence from the DICOM Efficiency Culture
8
IHE DICOM / HL7
  • Standards are vital (HL7, DICOM, ICD, )
  • They provide tools technologies
  • But Standards alone are insufficient
  • They are open to interpretation
  • There is room for optional variations
  • They avoid specifying how to apply them to
    particular real world scenarios

9
IHE Stimulated adoption of DICOM features
  • By 1998, DICOM Storage and Query Retrieve SOP
    Classes have been implemented and actively used
    by dozens of vendors
  • However, some features were interpreted
    differently (scout lines, query keys)
  • IHE established common interpretation

10
Use of DICOM in Workflow Management
  • DICOM MWL and MPPS were defined but not well
    implemented because their use without correlation
    with overall information flow in Radiology
    Department was limited
  • IHE defined use cases and established mechanisms
    to use these DICOM SOP Classes via Scheduled
    Workflow Integration Profiles

11
IHE researched DICOM data model
Patient
12
IHE Integration Profiles based on DICOM
  • Most IHE Radiology Integration Profiles are based
    on one or more DICOM SOP Classes
  • IHE spearheaded implementations of several
    recently defined DICOM capabilities spending time
    and effort to build practical implementation
    framework for them

13
IHE Profiles vs. DICOM SOPs
  • Consistent Presentation of Images
  • Simple Image and Numeric Report
  • Key Image Note
  • Grayscale Presentation State
  • Structured Reporting
  • Key Object Selection Document

14
IHE Profiles vs. DICOM SOPs
  • Post-Processing Workflow and Reporting Workflow
  • Evidence Documents
  • General Purpose Worklist and PPS
  • Mammo CAD, Chest CAD, etc.

15
IHE initiated development of DICOM features
  • IHE actively influenced development of DICOM
  • Correction proposals for better consistency of
    MWL/MPPS
  • Development of Key Object Selection Documents
  • Development of common audit messaging

16
Operational influences
  • DICOM influenced development process of IHE
    Technical Framework
  • Supplements, Correction Proposals
  • DICOM adopted IHE approach to definitions of use
    cases
  • Actors, transactions

17
Summary
  • The development of DICOM has influenced the
    development of IHE Technical Framework, and in
    turn, was influenced by user needs that are
    advocated for by the framework developers.
  • Cooperative effort of two bodies have proved very
    effective and will continue in the future,
    allowing for further advancement of DICOM and its
    acceptance in user and vendor communities.

18
Where Is More Information Available?
  • IHE
  • http//www.himss.org/IHE
  • http//www.rsna.org/IHE
  • DICOM
  • http//dicom.nema.org
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