http://www.radiologyinfo.org/en/info.cfm?pg=bodyct

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Note added at 3 hrs (2012-02-02 12:43:40 GMT)
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CT imaging is sometimes compared to looking into a loaf of bread by cutting the loaf into thin slices. When the image slices are reassembled by computer software, the result is a very detailed multidimensional view of the body's interior.

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Refinements in detector technology allow new CT scanners to obtain multiple slices in a single rotation. These scanners, called multislice CT or multidetector CT, allow thinner slices to be obtained in a shorter period of time, resulting in more detail and additional view capabilities.

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Note added at 3 hrs (2012-02-02 12:44:57 GMT)
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http://www.umm.edu/ency/article/003789.htm

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Note added at 3 hrs (2012-02-02 12:45:48 GMT)
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Once you are inside the scanner, the machine's x-ray beam rotates around you. (Modern "spiral" scanners can perform the exam without stopping.)

A computer creates separate images of the belly area, called slices. These images can be stored, viewed on a monitor, or printed on film. Three-dimensional models of the belly area can be created by stacking the slices together.

Read more: http://www.umm.edu/ency/article/003789.htm#ixzz1lECXwtzb


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Note added at 3 hrs (2012-02-02 12:48:45 GMT)
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CT slice through mid
abdomen

Ili abdominal CT slice.