QIDO-RS to query from another PACS

[Ramesh R]

I installed DCM4CHEE ARC LIGHT 5, following the Wiki page https://github.com/dcm4che/dcm4chee-arc-light/wiki/Installation#mysql-and-mariadb. And the installation is successful and I am able to launch the ui2 application from the browser.

Next I want to use the Qido-RS and Wado-RS services available in dcm4chee-arc-light to query/retrieve images from another pacs server running in my network (with AET name RPACS). So, I configured the AET of RPACS in my dcm4chee-arc-light instance with its IP address and port and able to successfully Echo. The problem comes when I issue the following url to retrieve the studies from RPACS through Qido-RS.

http://localhost:8080/dcm4chee-arc/aets/RPACS/rs/studies?includefield=all&offset=0&limit=21&orderby=-StudyDate,-StudyTime&ScheduledProcedureStepSequence.ScheduledProcedureStepStartDate=20170707&StudyDate=20170707

This request is throwing an exception in my dcm4chee-arc-light log as follows:

[org.dcm4chee.arc.qido.QidoRS] (default task-57) Process GET /dcm4chee-arc/aets/RPACS/rs/studies?includefield=all&offset=0&limit=21&orderby=-StudyDate,-StudyTime&ScheduledProcedureStepSequence.ScheduledProcedureStepStartDate=20170707&StudyDate=20170707 from nu...@127.0.0.1

12:06:24,530 ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-57) RESTEASY002010: Failed to execute: javax.ws.rs.WebApplicationException: No such Application Entity: RPACS

at org.dcm4chee.arc.qido.QidoRS.getApplicationEntity(QidoRS.java:483)

at org.dcm4chee.arc.qido.QidoRS.newQueryContext(QidoRS.java:437)

at org.dcm4chee.arc.qido.QidoRS.search(QidoRS.java:380)

at org.dcm4chee.arc.qido.QidoRS.searchForStudiesJSON(QidoRS.java:264)

at org.dcm4chee.arc.qido.QidoRS$Proxy$_$$_WeldClientProxy.searchForStudiesJSON(Unknown Source)

Looks like the AET RPACS is not identified by Qido-RS of dcm4chee-arc-light for some reason, though the Echo is successful. And I do not see any incoming requests reaching my RPACS server also, as per its logs.

[gunterze]

Querying a third party QIDO-RS service is not (yet) supported by the UI.

gunter

[Ramesh R]

Its ok if the UI is not supporting it, as my requirement is to use the dcm4chee-arc-light QIDO-RS and WADO-RS as a proxy to query from RPACS. Is this something possible to achieve with dcm4chee-arc-light? If so, would you please give some pointers on how to achieve this?

[gunterze]

It should not need much work to extend the UI to target QIDO/WADO services of another PACS, but because, there are not yet too much PACS systems in the field, supporting dicom-web services, enabling to query/retrieve external PACS systems using classic C-FIND,C-MOVE DIMSE services from the UI has a higher priority for us. (e.g. RESTful service to query Studies from external C-FIND SCP, RESTful service to export Studies from external C-MOVE SCP to C-STORE SCP, ...)

[Ramesh R]

Yes, I agree with your point. In fact, I want to use the web services of dcm4chee-arc-light in my application that I am developing and let the web services of dcm4chee-arc-light do a query/retrieve from an external PACS systems using classic C-FIND,C-MOVE. Can I achieve this with the current released version of dcm4chee-arc-light 5.10.3 or will have to wait for the 5.10.4 release?

[Gunter Zeilinger]

You will have to wait for 5.10.5. 5.10.4, which will be released in next days, will only provide the RESTful C-MOVE proxy.

gunter

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[Ramesh R]

Ok.Thanks. Once this feature is available in the next release of dcm4chee-arc-light, is it possible for my application to issue the following URL request to dcm4chee-arc-light server to get a WADO response? 

           http://localhost:8080/dcm4chee-arc/aets/RPACS/rs/studies/{StudyInstanceUID}

My understanding is that the above URL will be processed by the WadoRS of dcm4chee-arc-light and would in turn retrieve the images from RPACS using C-MOVE, process it and send WADO response to the calling application. Is my understanding correct?

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[gunterze]

No. You will be able to retrieve a study from RPACS to STORESCP by  http://localhost:8080/dcm4chee-arc/aets/DCM4CHEE/dimse/RPACS/studies/{StudyInstanceUID}/export/dicom:STORESCP

[l2x...@yeah.net]

When retrieving images, is it first through LDAP or directly into Qido-RS? I was confused when I was sorting out its running process. Please help me.

在 2017年7月7日星期五 UTC+8下午2:51:10，Ramesh R写道：