Hi there,
That depends on what type of workflow you mean. If you mean that you want to go to a study in XNAT and CSTORE it to a scanner, then sure, you can do that with the DICOM query/retrieve plugin. If you want to, from a scanner or other DICOM AE, query XNAT for a study [C-FIND] and then issue a C-MOVE to request the study, XNAT isn't going to support that. There's quite a few technical barriers where doing so would be quite difficult. In summary, and more technically, XNAT will support C-STORE as an SCU with the DQR plugin, (along with C-FIND/C-MOVE as SCU), but it does not support C-FIND/C-MOVE as an SCP.
Thanks,
Charlie Moore