Yes.Newer name for the same thing.CT is 'computed tomography'CAT was 'computer-assisted tomography'
Yes its just a shortened acronym. Computed Axial Tomography or Computed Tomography.
"Radiography" is a general term; "CT scan" is more specific. In current usage, "CT scan" is a scanning x-ray--a particular type of radiography. However, "radiography" includes x-ray techniques other...
Yes.
Both use X-Rays. Difference is X Rays use one single "shot" of radiation, CTs fire much more at you to get different "slices".