What is the difference between them?
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* An x-ray is 100-year-old technology of shooting a bunch of high energy photons through the body from one angle and then into a piece of film where an image is captured. It’s one view of the body taken from one angle.
* A CT/CAT (computerized axial tomography) uses x-ray technology, but essentially shoots many different angles and then uses a computer to reconstruct the image.
* An MRI (magnetic resonance image) is a different and much newer technology, where the body is immersed in a strong magnetic field, and then hit with radio photons that cause the molecules in the body to vibrate in the magnetic field. This vibration gives off signals that are then reconstructed by computer to form the image.
They are all ways of seeing the internals of a body, but somewhat different in implementation.
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