CT: Computed Tomography
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In a conventional x-ray structures are superimposed on top of one another, making it difficult to get a clear picture. Computed tomography, or CT scans take a picture of a single cross-section of the body, giving radiologists an unobstructed view of every organ, bone and soft-tissue. CT uses pencil-point x-ray beams from a rotating doughnut surrounding the patient's body. Detectors pick up the signals which vary in strength after they pass through human tissue. The detectors then send this information to a computer, which creates a picture of a single slice of the human body. A picture that looks something like—a pizza.

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Note: This video clip was originally created for broadcast in a family entertainment environment. It was designed for people of all ages as an upbeat and fast-paced educational tool on the most basic characteristics of radiology.


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