|Solaris, Linux, MacOSX, and Windows
||3D Slicer is a visualization program that was originally developed at MIT's Artificial Intelligence Lab in conjunction with Brigham and Women's Hospital's Surgical Planning Lab (Harvard Medical School Affiliate). The program was designed to help surgeons in the operating room be able to visualize MRI scans in a more helpful way (i.e. see where a brain tumor is located). It can read in a series of images to construct a data cube from which cuts/slices can be taken in any direction through it, 3D isosurface models can be generated, and 3D texture mapping can be created.
||OsiriX was designed as an medical image processing software to handle 2D, 3D, and 4D image sets including both medical image formats (DICOM) and standard formats (TIFF, JPEG). It's most impressive feature is it's volume rendering capabilities. Models can be saved as a Quicktime movie, a Quicktime VR, and can even be loaded onto an iPod. (The sample Quicktime movies were made using COMPLETE's 13CO data of Perseus.)