Medical Dictionary

single photon emission computed tomography


Medical Definition of single photon emission computed tomography

  1. :  a medical imaging technique that is used especially for mapping brain function and that is similar to positron-emission tomography in using the photons emitted by the agency of a radioactive tracer to create an image but that differs in being able to detect only a single photon for each nuclear disintegration and in generating a lower-quality image—abbreviation SPECT

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a rounded knoll or a ridge of ice

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