Difference between revisions of "Remote Reporting for Imaging (TeleRadiology) - Proposal"

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===Summary===
 
===Summary===
Cross-Enterprise or Community Diagnostic Image Sharing Repositories is a growing service internationally and has proven effective for sharing of previously acquired images and reports. The current IHE XDS-I.b infrastructure effectively supports this.  
+
Cross-Enterprise or Community Diagnostic Image Sharing Services are increasingly part of the infrastructure landscape in the clinical community. Leading the way are IHE profiles and standards, such as XDS-I proving the infrastructure framework for image and document exchange.
 
+
Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:  
Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:
+
* Improve throughput of radiology departments by allowing any qualified radiologist in the community to read and report a study  
Improve throughput of radiology departments by allowing any qualified radiologist in the community to read and report a study
+
* Align the number of resources (staff, equipment) with the needs of the community as opposed to considering individual hospitals only  
Align the number of resources (staff, equipment) with the needs of the community as opposed to considering individual hospitals only
+
* Facilitate assignment of studies to physicians that are best qualified to read them (e.g., a SPECT expert may be leveraged across the community)  
Facilitate assignment of studies to physicians that are best qualified to read them (e.g., a SPECT expert may be leveraged across the community)
+
* Provide off-hours coverage by sharing radiologists' services off peak hours
Provide off-hours coverage by sharing radiologists' services off peak hours
 
 
 
XDW has the Web Services infrastucture to meet this workflow need for web-based preporting.  XDW uses workflow definition documents to specifiy the workflow description. 
 
 
 
Reading Workflow is based on retired DICOM DMSE SOP Classes.  This profile is a candidate for retirement.    Recently DICOM has placed for ballot a RESTful Services version of Unified Procedure Step.  These transactions are also Web compatible and would be a good candidate to compliment the XDW profile with a RESTful implementation. 
 
 
 
Canada has the world's largest image sharing infrastructure.  There is a great desire to implement a standards-based Remote Reading capability in this region of the world.  Any region which leverages remote reading workflow would be a potential benefactor of this profile.
 
 
 
 
==2. The Problem==
 
==2. The Problem==
  
Cross-Enterprise or Community Diagnostic Image Sharing Repositories is a growing service internationally and has proven effective for sharing of previously acquired images and reports.  The current IHE XDS-I.b infrastructure effectively supports this. IHE PCC eReferral specifies a Workflow Definition (WD)  for community referral.  This WD does manage patient referrals for imaging.  eReferral does not address the remote reading of images outside of the initial referral or sharing of priors.  Currently, to meet this need, HCIT suppliers have built proprietary systems with non-standard methods for managing this workflow.  Proprietary methods limit the solution extensibility.
+
Cross-Enterprise or Community Diagnostic Image Sharing Repositories is a growing service internationally and has proven effective for sharing of previously acquired images and reports.  The current IHE XDS-I.b infrastructure effectively supports this.   However, ther is a lack of standards for the remote read.  Currently, to meet this need, HCIT suppliers have built proprietary systems with non-standard methods for managing this workflow.  Proprietary methods limit the solution extensibility.
  
 
Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:
 
Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:
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The workflow document steps, then, could be:
 
The workflow document steps, then, could be:
  
#'''Remote Read Request:'''The Remote Read Requester, usually the Radiology department scheduler, is triggered by an HL7 Order with a procedure code for SPECT.  The Remote Read Requester will automatically collect relevant clinical documents, including Manifest of Acquired Images, Tech Notes, Clinical Summaries, and, will create the Remote Read Request and a workflow document containing the tasks to be performed. The set of documents will be pushed to the regional image sharing network for processing.
+
The primary use case is workload sharing read.
#'''Schedule Remote Read:'''Once the document set is received by the image sharing network, the Remote Read Scheduler evaluates the Remote Request Request and assigns a reader(s) who are NM credentialed Radiologist.  The assignment is encapsulated in an HL7 procedure scheduled message to the Remote Reader's RIS/PACS.  The Workflow document is updated.
+
 
#'''Remote Read:'''The Remote Reader's RIS/PACS receives the procedure scheduled message and initiates the Remote Read Task.  The Final Report and any evidence documents (encapsulated in a New DICOM Manifest) are the output of this task.  This task may be partitioned into several subtasks to perform the read.  For each subtask, the workflow document may be updated and progress may be monitored in accordance with the terms of the BA and workflow document.  The additional subtasks are as follows:
+
For a workload sharing example, the specialty read of SPECT images is desacribed:
##'''Prep for Read:''' If step is neccessary, the Remote Read Preparer
 
###creates local Patient in database
 
###Retrieves remote images and relevant priors to local cache.
 
##'''Ready for Read:''' SPECT Read is placed on the Remote Reader(NM credentialed Radiologist) reading worklist
 
##'''Preliminary Read:''' Remote Reader(NM credentialed Radiologist) releases unsigned report
 
##'''Final Read:''' Remote Reader(NM credentialed Radiologist) releases Final Report to the Regional Image Sharing Network
 
# '''Read Complete:'''  The Remote Read Requester retrieves the Report and completes the Workflow.  Billing system is notified(out-of-scope). Final Report distributed to patient's care team(out-of-scope).
 
  
Workload sharing can include:
+
The community hospital has a NM acquisition system fully capable of acquiring SPECT Images, but lacks a credentialed NM Radiographer to read SPECT. Per the institutional business rules, all SPECT images will require a NM credentialed Radiologist to perform the read. The regional image sharing network has NM credentialed Radiologists. Based on the institutional business rules, this study meets the criteria for Remote Read.
*'''Specialty Read'''(SPECT example)
+
 
*'''Site Loading''' (time-to-read exceeds threshold example)
+
The workflow document steps, then, could be:
*'''Off hours coverage'''
+
# '''Remote Read Request:''' The Remote Read Requester, usually the Radiology department scheduler, has a SPECT study which requires a specialized Radiologist to perform the Read. The Remote Read Requester will collect relevant clinical documents, including the acquired SPECT images, tech notes, clinical summaries, and the original order.  The Remote Read Requester will initiate the Remote Read Request specifying the tasks to be performed and the business constraints and provide the request and the document set to the Remote Read Scheduler.  The read task locally will be removed from the local worklist.
Other specialized cases to consider include:
+
# '''Schedule Remote Read:''' Once the Remote Read Scheduler receives the request and document set, the Remote Read Scheduler will evaluate the Remote Read Request and, if it can meet the business constraints, assigns a reader(s) who are NM credentialed Radiologist.  The Remote Reade Scheduler will notify the requestor that the request has been accepted and scheduled.  The Read task will appear on the remote reader’s worklist.
*'''Double Read'''(mammography example)
+
# '''Remote Read:''' The Remote Reader's will select the task from their worklist.  The Remote Read Requester would be notified that the task is started.  The work item may be on their local RIS/PACS or an independent system. The Final Report and any evidence documents are the output of this task. This task may be partitioned into several subtasks to perform the read. A possible set of subtasks could be as described in the IHE Reporting Workflow profile.  However, would be considered out-of-scope for this profile.  The Final Report is distributed back to the Remote Read Requestor.  The worklist item is completed with the Remote Scheduler. 
*'''Consult'''(inconclusive read example)
+
# '''Read Complete:''' The Remote Read Requester retrieves the Report and completes the Workflow. Billing system is notified(out-of-scope). Final Report distributed to patient's care team(out-of-scope).
*'''Blind Read'''(VIP example)
+
'''Other Considerations'''
  
'''Initiating the Remote Read Request'''
+
Uses cases for Workload sharing may include:
*Note that the remote read request can be done automatically based on local business rules:
+
* Specialty Read(SPECT example)
**all studies acquired after certain time
+
* Site Loading (time-to-read exceeds threshold example)
**carrying certain procedure code (note that unifying procedure codes is out of scope)
+
* Off hours coverage
**Include a certain urgency code (codes defined by HL7)
+
* Double Read(mammography example)
**Peer review
+
* Consult(inconclusive read example)
**Remote Locum read
+
* Blind Read(VIP example)
**VIP read (pseudo-anonymous)
+
For Initiating the Remote Read Request
**Double Read
+
* The remote read request could be done automatically based on local business rules:
*or manually:
+
* all studies acquired after certain time
**Excessive read workload -for a site
+
* carrying certain procedure code (note that unifying procedure codes is out of scope)
**Specialty Consultant/Second read – directed to a person or specialty pool  
+
* Include a certain urgency code (codes defined by HL7)
'''Read Request Linkage'''
+
* Peer review
* All Output documents linked via Accession Number and Accession Assigning Authority
+
* Remote Locum read
* study needs to be removed from local reading list
+
* VIP read (pseudo-anonymous)
'''Other 'ologies''''
+
* Double Read
*Remote Read Workflow shall be extensible to other 'ologies' beyond Radiology
+
* or manually:
'''Specifically out of scope:'''
+
* Excessive read workload -for a site
*unifying procedure codes across institutions
+
* Specialty Consultant/Second read – directed to a person or specialty pool
*protocoling studies across institutions (protocoling performed locally)
+
Read Request Linkage
 +
* All Output documents linked via Accession Number and Accession Assigning Authority
 +
* study needs to be removed from local reading list
 +
For Other 'ologies'
 +
* Remote Read Workflow shall be extensible to other 'ologies' beyond Radiology
 +
Specifically out of scope:
 +
* unifying procedure codes across institutions
 +
* Cross institution Imaging Acquisition protocoling, (protocoling performed locally by the Imaging Acquisition Service)
  
 
==4. Standards and Systems==
 
==4. Standards and Systems==
Line 109: Line 101:
 
**D-SUB can act as a notification mechanism for XDW results available/completed  -OR- could be a trigger to receptionist to call Dr. XXX
 
**D-SUB can act as a notification mechanism for XDW results available/completed  -OR- could be a trigger to receptionist to call Dr. XXX
  
*'''UPS DICOM Webservices'''
 
**New DICOM Standard for workflow
 
  
 
==5. Technical Approach==
 
==5. Technical Approach==
 
===Existing actors===
 
===Existing actors===
DSS/Order Filler
+
See XDW, XDS-I and DSUB
• Report Manager
 
• Report Creator
 
 
===New actors===
 
===New actors===
• None
+
# Remote Read Requester
 +
# Remote Read Scheduler
 +
# Remote Read Reader
 
===Existing transactions===
 
===Existing transactions===
RAD-13 Procedure Updated: OMI to Include Status Update when Images are available
+
See XDW, XDS-I and DSUB
 
===New transactions (standards used)===
 
===New transactions (standards used)===
• RAD-X1 UPS-RS Query Reporting Worklist: UPS-RS version of RAD-46
+
None
• RAD-X2 UPS-RS Read Task Claimed: UPS-RS version of RAD-38
 
• RAD-X1 UPS-RS Read Task in-Progress: UPS-RS version of RAD-39
 
• RAD-X1 UPS-RS Read Task Completed: UPS-RS version of RAD-40
 
• RAD-X1 UPS-RS Read Completed: UPS-RS version of RAD-41
 
 
===Impact on existing integration profiles===
 
===Impact on existing integration profiles===
 
None – New Profiles are proposed.   
 
None – New Profiles are proposed.   
 
===New integration profiles needed===
 
===New integration profiles needed===
''' Imaging Read Workflow Definition (IRWD):'''  A content profile based on the Workflow Definition Template.  This content profile captures, in a document, the Imaging Read Workflow definition for remote reading.  The document is intended for use by the Cross-Enterprise Document Workflow Integration profile and the Proposed Reporting Workflow using RESTful Services.
+
''' Remote Read Workflow Definition (RRWD):'''  A content profile based on the Workflow Definition Template.  This content profile captures, in a document, the Imaging Read Workflow definition for remote reading.  The document is intended for use by the Cross-Enterprise Document Workflow Integration profile.
 +
 
 +
==6. Support & Resources==
 +
Canada Infoway SCWG-10 has led the development of this proposal and intends to collaborate with IHE on the development of the Remote Read Workflow Definition.  
  
'''Reporting Workflow using RESTful Services (RWRS):'''  A workflow integration profile based on the Reporting Workflow Integration profile.  The new profile will replace existing GP-MWL/GP-PPS transactions with the Unified Procedure Step – RESTful Services transaction.  It would be fully compatible with the XDW-Workflow Definition Document for Imaging Reporting.
+
PCC has expressed willingness to collaborate with IHE Rad.
Breakdown of tasks that need to be accomplished
 
1. Create the IRWD Content Profile
 
2. Create the RW-RS Integration Profile
 
3. Retire the Reporting Workflow Integration Profile
 
If necessary, a phased approach, separating the two profiles as separate tasks and starting with the IRWD Content Profile designed for compatibility with XDW, followed by the RW-RS Integration Profile.
 
  
==6. Support & Resources==
+
VA has an extensive remote read need and would be a good candidate for working with on this profile.
Canada Infoway SCWG-10 has led the development of this proposal and intends to collaborate with IHE radiology with the development of the Imaging Read Workflow Definition.  As Canada currently has a large scale XDS/XDS-I deployment, introducing the IRWD/XDW with the existing infrastructure is the intent.  Canada deployment of Image sharing technologies is the largest and most mature globally.  Other regional deployment groups have expressed interest in this proposal.
 
  
Adoption of the DICOM DIMSE-based GP-WL and GP-PPS transactions has been weak, to the extent where these SOP classes are currently retired by DICOM.  The profile proposes to use the new DICOM RESTful Services for the Unified Procedure Step.  It is anticipated that the DICOM RESTful Services will have a greated adoption rate.  Many vendors today are now developing their software using RESTful services.
+
UK, Italy, the Netherlands and other regions within Europe who have deployed XDS, XDS-I and XDW.  
  
 
==7. Risks==
 
==7. Risks==

Revision as of 10:27, 2 October 2014

1. Proposed Workitem: Remote Reporting for Imaging (TeleRadiology) Workflow Definition

  • Proposal Editor: Chris Lindop on behalf of IHE Canada/Canada Infoway
  • Editor: <Name of candidate Lead Editor for the Profile, if known>
  • Date: N/A (Wiki keeps history)
  • Version: N/A (Wiki keeps history)
  • Domain: Radiology

Summary

Cross-Enterprise or Community Diagnostic Image Sharing Services are increasingly part of the infrastructure landscape in the clinical community. Leading the way are IHE profiles and standards, such as XDS-I proving the infrastructure framework for image and document exchange. Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:

  • Improve throughput of radiology departments by allowing any qualified radiologist in the community to read and report a study
  • Align the number of resources (staff, equipment) with the needs of the community as opposed to considering individual hospitals only
  • Facilitate assignment of studies to physicians that are best qualified to read them (e.g., a SPECT expert may be leveraged across the community)
  • Provide off-hours coverage by sharing radiologists' services off peak hours

2. The Problem

Cross-Enterprise or Community Diagnostic Image Sharing Repositories is a growing service internationally and has proven effective for sharing of previously acquired images and reports. The current IHE XDS-I.b infrastructure effectively supports this. However, ther is a lack of standards for the remote read. Currently, to meet this need, HCIT suppliers have built proprietary systems with non-standard methods for managing this workflow. Proprietary methods limit the solution extensibility.

Cross-enterprise image sharing, beyond the initial step, has the capability to attain efficiencies and reduce cost at a macro-scale level:

  • Improve throughput of radiology depts by allowing any radiologist in the community to read and report a study
  • Align the number of resources (staff, equipment) with the needs of the community as opposed to considering individual hospitals only
  • Facilitate assignment of studies to physicians that are best qualified to read them (e.g., a SPECT expert may be leveraged across the community)
  • Provide off-hours coverage by sharing radiologists' services off peak hours

3. Key Use Case

The primary use case is workload sharing read.

For a workload sharing example, the specialty read of SPECT images is desacribed:

The community hospital has a NM acquisition system fully capable of acquiring SPECT Images, but lacks a credentialed NM Radiographer to read SPECT. Per the institutional business rules, all SPECT images will require a NM credentialed Radiologist to perform the read. The regional image sharing network has NM credentialed Radiologists. Based on the institutional business rules, this study meets the criteria for Remote Read.

The workflow document steps, then, could be:

The primary use case is workload sharing read.

For a workload sharing example, the specialty read of SPECT images is desacribed:

The community hospital has a NM acquisition system fully capable of acquiring SPECT Images, but lacks a credentialed NM Radiographer to read SPECT. Per the institutional business rules, all SPECT images will require a NM credentialed Radiologist to perform the read. The regional image sharing network has NM credentialed Radiologists. Based on the institutional business rules, this study meets the criteria for Remote Read.

The workflow document steps, then, could be:

  1. Remote Read Request: The Remote Read Requester, usually the Radiology department scheduler, has a SPECT study which requires a specialized Radiologist to perform the Read. The Remote Read Requester will collect relevant clinical documents, including the acquired SPECT images, tech notes, clinical summaries, and the original order. The Remote Read Requester will initiate the Remote Read Request specifying the tasks to be performed and the business constraints and provide the request and the document set to the Remote Read Scheduler. The read task locally will be removed from the local worklist.
  2. Schedule Remote Read: Once the Remote Read Scheduler receives the request and document set, the Remote Read Scheduler will evaluate the Remote Read Request and, if it can meet the business constraints, assigns a reader(s) who are NM credentialed Radiologist. The Remote Reade Scheduler will notify the requestor that the request has been accepted and scheduled. The Read task will appear on the remote reader’s worklist.
  3. Remote Read: The Remote Reader's will select the task from their worklist. The Remote Read Requester would be notified that the task is started. The work item may be on their local RIS/PACS or an independent system. The Final Report and any evidence documents are the output of this task. This task may be partitioned into several subtasks to perform the read. A possible set of subtasks could be as described in the IHE Reporting Workflow profile. However, would be considered out-of-scope for this profile. The Final Report is distributed back to the Remote Read Requestor. The worklist item is completed with the Remote Scheduler.
  4. Read Complete: The Remote Read Requester retrieves the Report and completes the Workflow. Billing system is notified(out-of-scope). Final Report distributed to patient's care team(out-of-scope).

Other Considerations

Uses cases for Workload sharing may include:

  • Specialty Read(SPECT example)
  • Site Loading (time-to-read exceeds threshold example)
  • Off hours coverage
  • Double Read(mammography example)
  • Consult(inconclusive read example)
  • Blind Read(VIP example)

For Initiating the Remote Read Request

  • The remote read request could be done automatically based on local business rules:
  • all studies acquired after certain time
  • carrying certain procedure code (note that unifying procedure codes is out of scope)
  • Include a certain urgency code (codes defined by HL7)
  • Peer review
  • Remote Locum read
  • VIP read (pseudo-anonymous)
  • Double Read
  • or manually:
  • Excessive read workload -for a site
  • Specialty Consultant/Second read – directed to a person or specialty pool

Read Request Linkage

  • All Output documents linked via Accession Number and Accession Assigning Authority
  • study needs to be removed from local reading list

For Other 'ologies'

  • Remote Read Workflow shall be extensible to other 'ologies' beyond Radiology

Specifically out of scope:

  • unifying procedure codes across institutions
  • Cross institution Imaging Acquisition protocoling, (protocoling performed locally by the Imaging Acquisition Service)

4. Standards and Systems

Systems

  • RIS
  • PACS
  • VNA
  • Community Image Sharing Network

Standards

  • XDS-I for hosting Images and reports
  • XDW underlying workflow profile framework
    • Compatible with XDS/XDS-I architecture
    • XDW currently does not support Cross community (XCA/XCA-I))
      • Workflow is all within the same affinity domain
      • This will be addressed in context with IHE ITI community
  • XBeR-WD Workflow Definition
    • Sufficient for Image Referral
  • XDR/XDR-I for point to point
    • As necessary
  • DSUB for Notifications
    • D-SUB can act as a notification mechanism for XDW results available/completed -OR- could be a trigger to receptionist to call Dr. XXX


5. Technical Approach

Existing actors

• See XDW, XDS-I and DSUB

New actors

  1. Remote Read Requester
  2. Remote Read Scheduler
  3. Remote Read Reader

Existing transactions

• See XDW, XDS-I and DSUB

New transactions (standards used)

None

Impact on existing integration profiles

None – New Profiles are proposed.

New integration profiles needed

Remote Read Workflow Definition (RRWD): A content profile based on the Workflow Definition Template. This content profile captures, in a document, the Imaging Read Workflow definition for remote reading. The document is intended for use by the Cross-Enterprise Document Workflow Integration profile.

6. Support & Resources

Canada Infoway SCWG-10 has led the development of this proposal and intends to collaborate with IHE on the development of the Remote Read Workflow Definition.

PCC has expressed willingness to collaborate with IHE Rad.

VA has an extensive remote read need and would be a good candidate for working with on this profile.

UK, Italy, the Netherlands and other regions within Europe who have deployed XDS, XDS-I and XDW.

7. Risks

<List technical or political risks that will need to be considered to successfully field the profile.>

8. Open Issues

<Point out any key issues or design problems. This will be helpful for estimating the amount of work and demonstrates thought has already gone into the candidate profile.>

9. Tech Cmte Evaluation

<The technical committee will use this area to record details of the effort estimation, etc.>

Effort Evaluation (as a % of Tech Cmte Bandwidth):

  • 35% for ...

Responses to Issues:

See italics in Risk and Open Issue sections

Candidate Editor:

TBA