noun
- an examination performed with a CAT scanner.
- an x-ray image obtained by examination with a CAT scanner.
- Short for computerized axial tomography scan. An image of a body structure produced by computerized axial tomography.
A three-dimensional image of a cross section of the body made with x-rays that is useful in diagnosing disease (for example, in detecting tumors). CAT stands for computerized axial tomography, the name of the method used to produce the image.