http://en.wikipedia.org/wiki/X-ray_computed_tomography
CT scanner with cover removed to show the principle of operation
Because contemporary CT scanners offer isotropic or near isotropic, resolution, display of images does not need to be restricted to the conventional axial images. Instead, it is possible for a software program to build a volume by "stacking" the individual slices one on top of the other. The program may then display the volume in an alternative manner.
Typical screen layout for diagnostic software, showing one 3D and three MPR views
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