Query/retrieve all Key Object Selection Documents and associated series

[jhleg...@vicomtech.org]

Hi,

I'm trying to fetch some DICOM series that are Key Object Selection Documents (i.e. series images marked as Key Objects). I'd need to query all existing KOS documents to a DICOM node, and retrieve these, as well as the associated series.

In order to do this, I guess that I need to restrict the corresponding query and retrieve processes by setting the Modality to KO.

However, it looks like my approach is not correct. I've used the QueryTool [1] class, but I'm wondering:

• How can I get the list of studies returned as the result of the query?
  
• How can I set the modality restriction to the query/retrieve?
  

For the query, I've tried

int tagInDecimal = Integer.parseInt("00080060", 16);
String modalities = "\\KO";
queryTool.addQueryTag(tagInDecimal, modalities);

without success.

Thanks,

Jon

[1] https://github.com/dcm4che/dcm4che/blob/master/dcm4che-tool/dcm4che-tool-findscu/src/main/java/org/dcm4che3/tool/findscu/test/QueryTool.java

[gunterze]

You have to use (0008,0061) Modalities In Study = "KO", not (0008,0060) Modality = " \\KO", for STUDY level queries.
The other option is to query on SERIES Level with (0008,0060) Modality = "KO", with negotiation of Relation Queries - so you need not to specify a Study Instance UID.

gunter

[jhleg...@vicomtech.org]

Hi Gunter,
thanks for the response.

It indeed helped to clarify things.

Cheers,
Jon