Post-Processing Workflow

1. Post-Processing Workflow Beya Aich Siemens Medical Solutions IHE Technical Committee

2. IHE Integration profiles Scheduled Workflow Patient Informa-tion Reconci-liation Charge Posting required for workflow management triggers Presentation of Grouped Procedures Reporting Workflow Post-Processing Workflow required for content Simple Image and Numeric Reports Consistent Presentation of Images Evidence Documents Key Image Notes Access to Radiology Information Basic Security Vendor Workshop, April 2003

3. Post-processing Workflow Objectives • Schedule, distribute and track post-processing workflow steps using standardized mechanisms • Worklists for each task are generated and can be queried • Workitems can be performed and the resulting status known and shared Vendor Workshop, April 2003

4. Workitem Claimed Worklist Post-ProcessingWorklist Measurements CAD report ……………………………… PP-Performed Step Started Store ImagesStore SR OF/DSS 3-D Workstation StorageCommitment List of Images/SR Storage Commitment Post-Processing Performed Procedure Step Workitem Completed PP-Performed Step: Performed Status = Started PP-Performed Step: Pat Name/ID Accession #, Study UID Performed Status = Completed Complete List of Images/SR Post-Processing Workflowwith Post-Processing Manager grouped with Image Manager PP-Performed Step Completed Image Manager/Archive & Post Processing Manager Vendor Workshop, April 2003

5. DICOMModality Worklist ScheduledProcedure Step A Report ScheduledProcedure Step B One or more series of images One or more series of images DICOMPost-Processing Worklist M-Perf.Procedure Step P1 PP-Perf.Procedure Step P2 Post-Processing AcquisitionModality Modality and Post-Processing Steps Radiology Department ORDER A request for RadiologicalService Set of Codifiable, Billable Acts Requested Procedure 1 Vendor Workshop, April 2003

6. Actors & Transactions • additional actor: • Post-Processing Manager • transactions: • Worklist Provided • Workitem Claimed • Workitem PPS In Progress • Workitem PPS Completed • Workitem Completed • Performed Work Status Update • Evidence Documents Stored • Query Evidence Documents • Retrieve Evidence Documents Vendor Workshop, April 2003

7. Post-Processing Manager Grouping • Post-Processing Manager is grouped either with Image Manager Performed Work Status Update (optional) DSS/OF Post-Processing Manager PWF Profile IM/IA SWF Profile Vendor Workshop, April 2003

8. Post-Processing Manager Grouping • or with DSS/OF Performed Work Status Update Report Manager DSS/OF IM/IA SWF Profile PWF Profile Vendor Workshop, April 2003

9. Query Images Retrieve Images Query Evidence Documents Retrieve Evidence Documents Evidence Documents Stored Images Stored Storage Commitment Performed Work Status Update Worklist Provided Image Availability Query Workitem Claimed Workitem PPS In Progress Workitem PPS Completed Workitem Completed Actors & Transactions IM/IA Image Display Post-ProcessingManager Evidence Creator Post-Processing Manager DSS/OF DSS/Order Filler Vendor Workshop, April 2003

10. Worklist Provided • EvidenceCreator finds out what post-processing tasks have been scheduled or assigned to it by the Post-Processing Manager • Worklist provided for workitem codes e.g. Image Processing or Computer Aided Detection. • Evidence Creator includes received information in the resulting instances Vendor Workshop, April 2003

11. Worklist Provided C-Find-RQ Post-Processing Manager Evidence Creator C-Find-RSP • General Purpose Worklist SOP Class • Explicit definition of required matching and return keys for both Post-Processing Manager and Evidence Creator • Evidence Creator shall implements at least one of three query cases: • Patient Oriented • Station Oriented • Class Oriented Vendor Workshop, April 2003

12. Patient's Name Patient ID Referenced Request Sequence >Accession Number >Requested Procedure ID Scheduled Workitem Code Sequence >Code Value >Coding Scheme Designator Patient Oriented Query • Worklist for a specific patient/procedure • SCU shall support all combinations of the matching keys Vendor Workshop, April 2003

13. General Purpose Scheduled Procedure Step Status Scheduled Station Name Code Sequence >Code Value >Coding Scheme Designator Scheduled Procedure Step Start Date and Time Scheduled Workitem Code Sequence >Code Value >Coding Scheme Designator Station Oriented Query • Broad worklist for a particular workstation • SCU must support all combinations of the matching keys Vendor Workshop, April 2003

14. General Purpose Scheduled Procedure Step Status Scheduled Station Name Code Sequence >Code Value >Coding Scheme Designator Scheduled Procedure Step Start Date and Time Scheduled Workitem Code Sequence >Code Value >Coding Scheme Designator Class Oriented Query • Broad worklist for a particular class of workstations • SCU must support all combinations of the matching keys Vendor Workshop, April 2003

15. Input Availability • Needed in case the Post-Processing Manager is not being grouped with the Image Manger • The Post-Processing Manager uses Image Availability Query to know when images are available. • Post-Processing Manager and Evidence Creator must be able to handle workitems with PARTIAL Image Availability in a stable way. Vendor Workshop, April 2003

16. Input Information C-Find-RQ Post-Processing Manager Evidence Creator C-Find-RSP • Evidence Creator may retrieve Input Objects using Input Information Sequence provided in the worklist response. • Input Objects may be made available at the Evidence Creator by means of workflow rules such as auto-routing. IM/IA Retrieve / Send Images, Evidence Documents Vendor Workshop, April 2003

17. Workitem Claimed • Evidence Creator takes ownership of the workitem • Post-Processing Manager updates its worklist and permits other worklist users to detect that this SPS has been claimed Vendor Workshop, April 2003

18. Workitem Claimed Evidence Creator • General Purpose Scheduled Procedure Step SOP Class Post-Processing Manager N-ACTION (SPS in Progress) Vendor Workshop, April 2003

19. Workitem PerformedProcedure Step In Progress • Evidence Creator starts work on claimed SPS • Notifies Post-Processing Manager to create a Performed Procedure Step Vendor Workshop, April 2003

20. Workitem PerformedProcedure Step In Progress Evidence Creator N-CREATE(PPS in Progress) Post-Processing Manager • General Purpose Performed Procedure Step SOP Class • SPS and PPS relationships (Appendix III-D): • Simple Case • Unscheduled Case • Append Case • Abandoned Case Vendor Workshop, April 2003

21. Workitem PerformedProcedure Step Completed • Evidence Creator notifies Post-Processing Manager of the PPS completion • Evidence Creator references any results created e.g. images, evidence documents Vendor Workshop, April 2003

22. Workitem PerformedProcedure Step Completed Evidence Creator N-Set (PPS Completed) Post-Processing Manager • General Purpose Performed Procedure Step SOP Class • Evidence Creator shall send to the Post-Processing Manager a list of all Composite SOP Instances in the Output Information Sequence (0040,4033) Vendor Workshop, April 2003

23. Workitem Completed • Evidence Creator notifies the Post-Processing Manager when it completes the scheduled workitem • Post-Processing Manager updates its worklist Vendor Workshop, April 2003

24. Workitem Completed Evidence Creator N-ACTION (SPS Completed) Post-Processing Manager • General Purpose Scheduled Procedure Step SOP Class • No further PPS will be created for this SPS Vendor Workshop, April 2003

25. Performed Work Status Update • Department System Scheduler and Image Manager inform each other of the status of performed post-processing work • Allows the system not managing the performed work to stay in sync Vendor Workshop, April 2003

26. Performed Work Status Update N-CREATE (PPS in Progress) • General Purpose Performed Procedure Step SOP Class • Performed Workitem Code Sequence (one workitem) • Requested Subsequent Workitem Code Sequence(next workitem) Image Manager DSS/OF N-SET (PPS Completed) Vendor Workshop, April 2003

27. DICOM PP-PPS DICOM PP-PPS DICOM MPPS DICOM Image Storage DICOM Storage CommitmentDICOM MPPS DICOM Storage & Commitment DICOMPP-WL DICOM Storage & Commitment DICOM MWL DICOMPP-SPS DICOMQ/R DICOMPP-SPS DICOMQ/R DICOMPP-WL DICOM PP-PPS DICOMPP-PPS Wrap UpPost-Processing Workflow (Multiple Steps)with Post-Processing Manager grouped with Image Manager PACS RIS Modality Post-ProcessingStation CAD Station Vendor Workshop, April 2003

28. Questions? Vendor Workshop, April 2003