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| What is CT? |
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is a technique that utilizes thin beams of x-ray and highly sophisticated computers to generate images of the human anatomy.
CT has been revolutionized by the advent of spiral (or helical) CT. In
contrast to conventional CT, which images a slice of the body, moves the
patient, obtains another slice, etc., helical CT scans continuously as
the patient travels through the CT gantry. This markedly decreases the
time required to do a study. The entire chest and abdomen are scanned in
less than a minute with elimination of motion artifact. The ability to
present images in any plane (mulitplanar reconstruction) eliminates the
need for multiple "runs" thus decreasing x-ray exposure.
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