What is the meaning of Computed_tomography?

A form of radiography which uses computer software to create images, or slices, at various planes of depth from images taken around a body or volume of interest. Sometimes called “computerized tomography”. (The radiation used is X-rays unless otherwise specified.)

Such imaging applied to health care.

Such imaging applied to industrial inspection or to security at airports, seaports, large public venues, and so on.

Source: wiktionary.org