positron emission tomography

technique for creating detailed images of bodily tissues by injecting positron-laden material into the body and recording the gamma rays emitted over a period of about two hours (Medicine)

Positron emission tomography (PET) is a nuclear medicine medical imaging technique which produces a three-dimensional image or map of functional processes in the body. The concept of emission and transmission tomography was introduced by David Kuhl and Roy Edwards in the late 1950's. Their work later led to the design and construction of several tomographic instruments at the University of Pennsylvania. The technique was further developed by Michel (Michael) Ter-Pogossian, Michael E. Phelps and others at the Washington University School of Medicine  
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Positron emission tomography is a scanning technique used in conjunction with small amounts of radiolabeled [more]Positron emission tomography - Community and Resources

Noun
1. using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)
(synonym) PET
(hypernym) imaging, tomography