I had created a script that can import all dicom files in a directory to running othanc server. I know that is an already written script for this for this issue but themy script is multi-threaded, loggable & resumable.
I created a simple README. no unit tests yet ( may be forever )
Thanks for your contribution. Do not hesitate to create a pull request against the Orthanc Contributed repository that tracks third-party contributions to make sure that your import tool is properly indexed (check out the Links.md file).