How do CT scans, MRIs and nuclear images differ?
CT scanners take X-ray cross-sectional views of selected organs or tissue, which are then integrated through computer processing to show great detail. MRIs use a magnet and radiofrequency waves to depict multiple slices for a more multi-dimensional view, thereby providing a different kind of detail. Both show static images. Nuclear images, however, can show movement. Highly specialized cameras take rapid pictures of areas that are highlighted with a radioactive tracer, providing information about how organs, bones or circulatory structures are functioning.
