Several imaging procedures have been developed to help diagnose diseases in humans. Examples include X-ray imaging, ...

__1973: __The CT scan goes into use in the United States. Lives will be saved. Originally known as a CAT scan -- for computed (or computerized) axial tomography, or computer-aided (or assisted) ...

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The use of x-rays in medicine was a huge breakthrough at the turn of the century. The problem with x-rays, though, is that they're two-dimensional. Organs of the same density look the same. But ...