Changing VR Type or Contents with ImportConverter

I'm using Conquest to assist me with a data migration project, but I'm having some trouble with data manipulation. I've got some studies that have an incorrect VR type for 0040,9210 (LUTLabel); the VR in the header is SS, but should be SH. I'd like to either change or remove the VR so I can bring the study into my main PACS system.

I couldn't find any commands to change VR type, but I did see in the manual that "delete xxxx,yyyy" is a valid command, so I've configured thusly:

ImportConverters = 1ImportConverter0 = ifequal "%u", "DCMSND"; delete 0040,9210; forward series compressed as jk to MIGRATION_AE

However, the change doesn't appear to be made, as nothing is logged stating so; the only ImportConverter event is:

Fri Feb 15 16:20:49 2013 Importconverter0.2: queued forward ser - (single object   of 48-241038290) to MIGRATION_AE

And MIGRATION_AE is still rejecting the images:

DCM Incorrect VR (SS) for attribute with tag (0040, 9210)- Expected VR (SH)

Am I missing something in the configuration for the ImportConverter, or do I misunderstand how the delete command should work?

Thank you.

Need to enable Debug Logging both in dicom.ini and on the command line, right?

I set DebugLevel = 2, and separated the delete ImportConverter from the forward command, and moved the forward command into a new ExportConverter. Still not seeing anything about deleting that VR.

I've split the forward and delete into two separate converters with very little logic:

ImportConverters = 1ImportConverter0 = delete 0040,9210ExportConverters = 1ExportConverter0 = forward series compressed as jk to AISMIGRATION

And still all I see is this, no mention of the ImportConverter at all in the log:

Mon Feb 18 15:36:20 2013 Exportconverter0.0: queued forward ser - (single object   of 48-241038290) to AISMIGRATION

I also don't notice any difference in the logging after issuing the debuglevel:2 command.

ImportConverters = 2
ImportConverter0 = delete 0040,9210
ImportConverter1 = forward series compressed as jk to AISMIGRATION

Same result.

I have tried dgate --debuglevel:4, but the only change in the log is:

Mon Feb 18 17:08:15 2013 Server command sent using DGATE -- option

Don't see any mention of delete failing because the item is missing...

Mon Feb 18 17:08:59 2013 [recompress]: recompressed with mode = jk (strip=0)
Mon Feb 18 17:08:59 2013 Importconverter1.0: queued forward ser - (single object   of 48-241038290) to AISMIGRATION
Mon Feb 18 17:08:59 2013 Rewritten file: /usr/local/conquest/data/2.16.840.1.114151.4.580.39312.5003.2367946/1.3.46.670589.11.17235.5.0.2248.2007082212580292391/1.2.840.113837.2947041227.20120224165613.1.dcm

I'll try the lua.

Using your lua:

Tue Feb 19 16:01:09 2013 *** lua run error [string "print('before' .. Data['0040,9210']); Data[..."]:1: attempt to concatenate field '0040,9210' (a nil value) in 'print('before' .. Data['0040,9210']); Data['0040,9210'] = nil; print('after' .. Data['0040,9210']);'

It does, though:

2.16.840.1.114151.4.580.39312.5003.2367946$ dcmdump 1.2.840.113837.1015433102.20120224165622.1.dcm | grep 0040,9210
    (0040,9210) SS 26704\27753\28777\8307                   #   8, 4 LUTLabel