QIDO includefield with sequences

General
1

I’m trying to do a QIDO using the DICOMweb plugin. The repository tracker indicates that QIDO does not support

  • sequence query
  • includefield=all
    so instead I am trying to return the entire sequence in the response and then do the filtering of the sequence myself but that doesn’t appear to be working.

If I do includefield with a non-sequence tag, the value is returned no problem but not with a sequence tag. Specifically, I want to return the ThreatSequence.

Is sequence returning also currently not supported?

Thanks.

2

Hi,

Could you provide us with a minimal working example for us to test/analyze ?

Best regards,

Alain

3

Hey Alain,

Here’s a test example using the demo data. I can use curl to get the QIDO-RS Instance Returned Attributes

curl “https://orthanc.uclouvain.be/demo/dicom-web/instances?00080018=1.3.12.2.1107.5.99.1.24063.4.0.447989428888616”

When I modify the command to

curl “https://orthanc.uclouvain.be/demo/dicom-web/instances?00080018=1.3.12.2.1107.5.99.1.24063.4.0.447989428888616&includefield=00081110”

I expect to receive (0008,1110) or the ReferencedStudySequence in the result, but it is not there.

4

Hi @orthancuser1234

Thanks for the sample.
I have fixed it in the DicomWEB plugin → that will be available in the next release that should be available in the next days.

Best regards,

Alain.

5

Hey Alain,

Thanks for the help and quick fix! Look forward to the new release.

6

Hey @alainmazy

I see the new DICOMweb plugin has been published (1.17). I fetched it and it is returning most sequences now. However I am still having issues trying to retrieve a specific sequence. I wasn’t sure if I should create a new topic or not.

When trying to includefield for the ThreatSequence (4010,1011), I get the following error

HTTP-1 OrthancException.cpp:61] Bad file format: While creating a DICOM instance, tag (4010,1004) has out-of-range value: “30\20\10”

(4010,1004) is a tag within the sequence (4010,1011), so the entire sequence still fails to be retrieved.
The file loads fine in Orthanc Explorer.

Thank you for your help.

7

Hi @orthancuser1234

This is now fixed in this Orthanc commit (not the DICOMWeb plugin)

As a reminder: here is the command to trigger the issue:

curl -H "Accept: application/json" http://localhost:8043/dicom-web/studies/3514362423.48393.20309.144196.219156018096226062/series/0505413713.04815.16453.147140.089119194093148248/instances?includefield=40101011

and here is the new output:

...
  "40101001" : {
      "Value" : [
         {
            "40101004" : {
               "Value" : [ 30, 20, 10 ],
               "vr" : "FL"
            },
            "40101005" : {
               "Value" : [ 30, 40, 50 ],
               "vr" : "FL"
            }
         }
      ],
      "vr" : "SQ"
           },
8

Hey @alainmazy

Awesome, thank you so much!