Medical Imaging Ecosystem : OHIF

Open Health Imaging Foundation (OHIF) is an open-source software project to create a framework for medical image viewers. GaelO uses OHIF to develop its imaging viewers.
Medical Imaging Ecosystem : Orthanc

Orthanc is an open-source PACS developed by Sébastien Jodogne at the University of Liège, which received the Free Software Foundation’s Open-Source Award.