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Definition of Scan, SPECT

Scan, SPECT: Single Photon Emission Computed Tomography, a nuclear medicine procedure in which a gamma camera rotates around the patient and takes pictures from many angles, which a computer then uses to form a tomographic (cross-sectional) image.

The calculation process in SPECT is similar to that in CT (X-ray computed tomography) and in PET (positron emission computed tomography).

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=18452
Last Editorial Review: 6/14/2012

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