DQR plugin failing to import all data

[Jon Moore]

Hello,

We are using XNAT (1.8.3) with the DQR plugin (1.0.1) to connect to a Trust PACS system and retrieve multiple DICOM series. We are seeing some errors and wondered if there are any known bugs or workarounds? Here's the approach we are taking:

 - we are making multiple concurrent requests (100+) to /dqr/query/studies in XNAT to retrieve DICOM series by accession ID from a local PACS system

 - all requests are seeing a 200 response, but when we check some of the requests have FAILED (failure_image_1.png)

 - the error message seems to suggest that the image has already been imported but when we check this isn't the case (failure_image_2.png)

 - as we are not specifying a session ID or patient name during the request, these are coming back as 'dicom_upload' (failure_image_3.png)

are you aware of any issues in the DQR bulk upload plugin? Is it likely that the 'dicom_upload' session could be causing issues?

Any feedback greatly appreciated...

Thanks, Jon.

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[Charlie Moore]

Hi Jon,

I'm not positive, but it sounds like you're running into a couple of different but highly related issues here. For the requests marked FAILED in the DQR history, you'd probably need to check the XNAT logs when you're trying to import one of those sessions for us to have a better idea of what's going wrong.

For the "dicom_upload" issue, XNAT requires all sessions in an individual project to have unique session labels. So, if you have multiple sessions all labeled "dicom_upload", archiving all of them will fail, after the first. The DQR plugin is currently rather rigid where it will attempt to use (0020,0010) Study ID as the session label, and if it doesn't find that, it falls back to "dicom_upload". Are these studies all missing a value for Study ID on the PACS side?

Thanks,

Charlie Moore