Private tags are null in Orthanc explorer

Hi,

When private tags are added to instances stored by Orthanc serveur, Orthanc explorer shows null values for them in instances DICOM tags list. A look at the DICOM file content shows that tag values are present.
Is it a bug or normal behaviour (after all private tags are… private !) ?

Marc

Hi,

Yes, this is normal behavior. Private tags are reported as “null” to indicate the fact that the tag is available, but that its value is not readily available because it is non-standard.

Sébastien-

Ok, thanks

Marc

By the way it seams that all non standard DICOM tags are excluded from Orthanc operations, even in LUA ReceivedInstanceFilter and OnStoredInstance functions where respective dicom and tags parameters don’t contain private tags.
With this behaviour, private tags become useless for filtering or forwarding rules !
Is there a way to read non standard DICOM tags in LUA scripts ?