R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R."
DCMTK is a collection of libraries and applications implementing large parts the DICOM standard. It includes software for examining, constructing and converting DICOM image files, handling offline media, sending and receiving images over a network connection, as well as demonstrative image storage and worklist servers. DCMTK is is written in a mixture of ANSI C and C++.
Mirth is an open source cross-platform HL7 interface engine that enables bi-directional sending of HL7 messages between systems and applications over multiple transports. It is divided in three subprojects:
Mirth Connect: Specifically designed for HL7 message integration, Mirth Connect provides the necessary tools for developing, testing, deploying, and monitoring interfaces.
"GPL-licensed Electronic Medical Record and Practice Management system for medical providers that runs in any web browser in multiple languages. It is developed since 1999. It provides an XML-RPC backend and multiple import and export formats, as well as reporting and other features."
The GNUmed project builds free, liberated open source Electronic Medical Record software in multiple languages to assist and improve longitudinal care. It is made available at no charge and is capable of running on GNU/Linux, Windows and Mac OS X. It is developed by a handful of medical doctors and programmers from all over the world. It can be useful to anyone documenting the health of patients including, but not limited to, doctors, physical therapists, occupational therapists ...