Materialize
A product of Materialize, Mimics can import any 2D stack of images and allows 3D reconstruction from them. Mimics imports images like CT, TechCT, MRI and Microscopy data in a wide variety of formats. Remaining extremely intuitive and easy to learn software, Mimics provides very powerful features. A range of segmentation tools allow you to select a region of interest. Within a few clicks this part is transformed into a 3D model on which real time rotation, pan, zoom and transparency functions can be applied.
http://www.materialise.com/materialise/view/en/65854-Homepage.html

