GHC DICOM Metadata streaming to BigQuery

[Vineeth Kanaparthi]

Hi team,

I'm exploring the streaming option in GHC DICOM stores and noticed that some tags are not being saved.

example: 0x0002, 0x0016),(0x0002, 0x0017),(0x0002, 0x0018) are not being saved 

but (0x0002, 0x0002),(0x0002, 0x0003),(0x0002, 0x0013) are being saved.

Is there anyway include these fields so that they are parsed and saved?

Thanks
Vineeth

[Truc Le]

Hi Vineeth,

It looks like the tags not appearing in BigQuery in your example have VR=AE and we support it. Could you please verify

1. If those tags appear in the DroppedTags column?
2. If those tags appear in the retrieveMetadata endpoint?

Thanks,

Truc

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[Vineeth Kanaparthi]

Hi Truc,

I forgot to mention that I'm ingesting these dicom files through the dimse-dicomweb adapter and it seems like these tags are not being passed through the adapter to GHC DICOM Web API. I tried ingesting the same files through the web api and the tags do land in BQ.

The only meta tags that are being added via dimse adapter are:

refer: https://github.com/GoogleCloudPlatform/healthcare-dicom-dicomweb-adapter/blob/master/import/src/main/java/com/google/cloud/healthcare/imaging/dicomadapter/cstore/DicomStreamUtil.java 

Thanks
Vineeth

[Truc Le]

CC @Jason Klotzer who is our expert in DICOM specs

Hi Vineeth,

Sorry for the late response. The 0002 group of tags are only saved when persisted to storage and dcm4che just follows the specs to add only the type 1 tags. So I'd recommend users to encode other tags to the dataset, not the file metadata information.

Thanks,

Truc

On Wed, Oct 16, 2024 at 8:04 PM Vineeth Kanaparthi <vkana...@promaxo.com> wrote:

Hi Truc,

Checking in to see if there are any plans to address this inconsistency because we plan to use both ingestion flows( DICOMWeb and via the DIMSE Adapter) and then trigger downstream processing.

Thanks
Vineeth

[Vineeth Kanaparthi]

Hi Truc,

Checking in to see if there are any plans to address this inconsistency because we plan to use both ingestion flows( DICOMWeb and via the DIMSE Adapter) and then trigger downstream processing.

Thanks
Vineeth

[Vineeth Kanaparthi]

Thank you for your inputs Truc. The best way forward for us seems to be modify the adapter to add these tags so that we can identify which AET sent the DICOM files. 

Thanks
Vineeth