This time we have a nice (hopefully) surprise for RadiAnt integrators - command line parameters for searching and downloading studies from PACS nodes using specified DICOM tags - available in RadiAnt DICOM Viewer 1.99.51
http://www.radiantviewer.com/startdownload.php?f=beta
The argument "-pstv" is followed by one or more pairs of tag ID/value:
RadiAntViewer.exe -pstv 00080050 "1412-14-ACCESSION-NUMBER"
By default all PACS nodes configured in RadiAnt are searched. You can define only one PACS node by using "-paet" and its AE title:
RadiAntViewer.exe -paet MYPACSAETITLE -pstv 0020000D "1.4.24.2.1107.STUDYUID"
Enjoy!