XMedCon

a medical image conversion utility & library; hereby hoping to lower at least one barrier in medical research projects.

AMIDE - Medical Image Data Examiner

Amide’s a Medical Image Data Examiner: Amide is a tool for viewing, registering, and analyzing anatomical and functional volumetric medical imaging data sets.

Medical Data Segmentation Toolkit -MDSTk

MDSTk (Medical Data Segmentation Toolkit) is a collection of 2D/3D image processing tools aimed originally at medical images. Base parts of the MDSTk are public, distributed on this web site.
Advantages :

Run on windows , linux .
2D/3D image processing .

Disadvantages  :

Geeks skills for installation and using .

SmartExp (Medical records management)

This is a software intended to manage medical records(Electronic medical records or EMR).It allows the user to create customized medical record formats including texts,drawings, pictures and others. You can define as many medical file formats as you need .

FreeMED

Electronic Medical Record and Practice Management system for medical providers that runs in any web browser in multiple languages. It provides an XML-RPC backend and multiple import and export formats, as well as reporting and other features .