Computed axial tomography and X-radiation

Computed axial tomography noun - A method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis.

X-radiation and computed axial tomography are semantically related. In some cases you can use "X-radiation" instead a noun phrase "Computed axial tomography".

X-radiation noun - Electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target.

Computed axial tomography and x-radiation are semantically related. Sometimes you can replace phrase "Computed axial tomography" with "X-radiation", this phrases are similar.