How is a CT Scan different from an MRI?
A. CT (or CAT) stands for Computed Axial Tomography. This technique of imaging uses an X-ray tube that rotates in a large circle around the subject and the X-rays that pass through the body slice are detected by a large number of detectors located around the same circle. A powerful computer analyzes the resulting information and a picture is provided of slices representing the relative X-ray densities of the slice being imaged.
