[Bug] Unable to open certain series with an updated v3

[fedorov]

Describe the Bug

This is somewhat bizarre and intricate...

While spot-checking updated v3, I ran into a weird issue of a specific series triggering error. For each of the below you need to double-click RTSTRUCT to open the series that causes error.

This is the URL of the study where everything works with the current OHIF v3: https://viewer.imaging.datacommons.cancer.gov/v3/viewer/?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277

Here it is in dev, with a newer OHIF, and it triggers error: https://dev-viewer.canceridc.dev/v3/viewer/?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277

Same with test tier: https://testing-viewer.canceridc.dev/v3/viewer/?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277

Here is the same version of OHIF, which I deployed, talking to the proxy, and it triggers an error as well: https://viewers-sandbox-gha-testing.web.app/viewer?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277

But if I use that last instance of the viewer and point it to the same study in the Google Healthcare DICOM store directly, I do not get any errors: https://viewers-sandbox-gha-testing.web.app/viewer?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277&gcp=projects/nci-idc-data/locations/us-central1/datasets/idc/dicomStores/idc-store-v21

The only difference between the last 2 URLs should be the proxy, but then why does it work with proxy with the earlier version of the viewer?

@igoroctaviano this is the error in the console:

@s-paquette @igoroctaviano how should we proceed investigating this?

Steps to Reproduce

see above

The current behavior

see above

The expected behavior

see above

OS

mac

Node version

na

Browser

chrome

[fedorov]

some details discussed on slack https://cornerstonejs.slack.com/archives/GP0DDMVMF/p1757431573826099

[igoroctaviano]

@fedorov I don't see ROIContourSequence in the dicom tag browser: http://localhost:3000/viewer/?StudyInstanceUIDs=1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277
Do you? it fails here: https://github.com/OHIF/Viewers/blob/8c8a4c2222b89cb12fa9a4c4faccef8e8cbf1d72/extensions/cornerstone-dicom-rt/src/loadRTStruct.js#L7

[fedorov]

I do - but only if I do dcmdump on the downloaded file on disk!

dcmdump ./nsclc_radiomics/LUNG1-007/1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277/RTSTRUCT_1.3.6.1.4.1.32722.99.99.308499776475237758781599767226383467358/b8cac782-7f40-4d7a-9eba-ae79a9cfc945.dcm|grep ROIContour

(3006,0039) SQ (Sequence with undefined length #=7)     # u/l, 1 ROIContourSequence

[igoroctaviano]

I do - but only if I do dcmdump on the downloaded file on disk!

dcmdump ./nsclc_radiomics/LUNG1-007/1.3.6.1.4.1.32722.99.99.282967364651788470277412461462049836277/RTSTRUCT_1.3.6.1.4.1.32722.99.99.308499776475237758781599767226383467358/b8cac782-7f40-4d7a-9eba-ae79a9cfc945.dcm|grep ROIContour

(3006,0039) SQ (Sequence with undefined length #=7)     # u/l, 1 ROIContourSequence

Undefined length? is that right?

[fedorov]

It is normal. See https://dicom.nema.org/medical/dicom/current/output/chtml/part05/sect_7.5.html.

[igoroctaviano]

Fix: OHIF#5415