One of the mysteries of the English language finally explained.
An imaging technology in which substances containing positron-emitting isotopes are introduced into the body, allowing the precise location of physiological processes by detection of the gamma rays produced by the isotopes.
An imaging technique in which substances incorporating positron-emitting isotopes are introduced into the body, used especially for the precise localization of metabolic and other physiological processes; abbreviated PET.
1970s; earliest use found in Journal Nuclear Medicine.
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