Hello, I think that the features you describe like create a new patient or a new study are part of a RIS, and this is totally diferent from the functionality of a PACS Server like Orthanc. Anyway, GNU Health it’s a HIS that have the functions to create new patients, but I think that you need the use of the worklist to do all the process.
Previously I see a publication here about OpenMRS, that have the integration of the MWL to create new studies and patients, maybe will be a useful tool.
Another way to do that, could be, select a study from a patient, use the “Anonimize” tool tocreate a copy, then in that copy attach the new series or full study, but I think that is to much manually work.
Regards, Ricardo Martínez.