You could have downloaded Madena 3.2 for Mac from our application library for free. The software is categorized as Business Tools.
From the developer:
Madena is a medical image viewer and image processing program. Madena can open all QuickTime compatible image file formats as well as most Digital Imaging and Communications in Medicine (DICOM) and ACR/NEMA file formats.
DICOM is the current industry standard for medical images and is widely used for CT, MR and US images.