WADO Request

[marcelo...@sysline.inf.br]

Hello,

I'm auditioning Orthanc + WADO, after setting up the plugin "OrthancDicomWeb-0.1.dll" in the config file and restart the Orthanc, by calling the URI below he returned to DICOM image ... Fantastico!

Example:
http://localhost:8042/wado?requestType=WADO&studyUID=1.2.840.113745.101000.1008000.38046.4274.5925160&seriesUID=1.3.12.2.1107.5.2.5.11090.5.0.5823657848275436&objectUID=1.3.12.2.1107.5.2.5.11090.5.0.5823661031981777&contentType=application%2Fdicom

But that's the only URI that works ... If I remove part of the URI keeping only "studyUID" he deveri not return all of the studies?

But the goal is to integrate Orthanc with a viewer that supports WADO communication ... but for this viewer can locate the "objectUID" he did not need to make another query that returns the "patients" -> "studies" -> "series" -> "objects" ???

As this consultation work? Already I consulted the specification often and I can not understand.

Sorry ignorance.

Thank you!
Marcelo

[Sébastien Jodogne]

Dear Marcelo,

WADO (now referred to as WADO-URI) only enables the display of one single image in a Web browser.

Roughly speaking, WADO-URI is a specification to render one single DICOM file as a JPEG image using the HTTP protocol. Your example is a WADO-URI request. As a consequence, WADO-URI does not work on a full study of medical images. Note that a description of WADO-URI is available at the following location:

http://www.codeproject.com/Articles/797118/Implementing-a-WADO-Server-using-Orthanc

If you need to do more that simply rendering a single image, you will have to resort to the more advance DICOMweb protocol, that is also supported by the plugin:

http://dicomweb.hcintegrations.ca/#/home

The full DICOMweb spec (that is made of WADO-URI, WADO-RS, QIDO-RS and STOW-RS) is available at the following location:

http://dicom.nema.org/medical/dicom/current/output/html/part18.html

With QIDO-RS, you will be able to locate the patients/studies/series of interest, and with WADO-RS, you will be able to download the DICOM images that are associated with these resources.

HTH,

Sébastien-

[marcelo...@sysline.inf.br]

Hello Sébastien,
Thank you for your help!

The DICOMweb plugin is already installed, the links were very enlightening, but arises another doubt as search parameter what should I use?

http://localhost:8042/studies/52e28c1f-35e8e518-d1ec6490-aa61885e-1fe5ff3f52e28c1f

ID = 35e8e518-d1ec6490-aa61885e-1fe5ff3f

Should not be?

StudyInstanceUID = 1.2.840.113745.101000.1008000.38046.4274.5925160

In this case the URI would be:

http://localhost:8042/studies?StudyInstanceUID=1.2.840.113745.101000.1008000.38046.4274.5925160

But returns:

<?xml version="1.0" encoding="utf-8"?>
<root>
<item>52e28c1f-35e8e518-d1ec6490-aa61885e-1fe5ff3f</ item>
</root>

Where am I going wrong?

Another issue is that the plugin sets up a root "/wado" in the Orthanc configuration file, this root should not be used in the URI?

Thank you!
Marcelo

[Sébastien Jodogne]

Hello,

With your URL, you are not calling the DICOMweb API but the Orthanc API. You must add the "/dicom-web/" prefix.

Here is the proper WADO-RS request:

# curl http://localhost:8042/dicom-web/studies/1.2.840.113745.101000.1008000.38046.4274.5925160

As written previously, the "/wado" URI corresponds to the WADO-URI point of access. This "/wado" URI only gives access to one single JPEG image, which is not your use case.

Sébastien-

[marcelo...@sysline.inf.br]

Hello Sébastien,

Thanks!!!!!!

Now worked perfectly!

Thank you!
Marcelo