Main definitions of positron emission tomography in US English:

: positron emission tomography1positron emission tomography2

positron emission tomography1

noun

Medicine
  • 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.

Main definitions of positron emission tomography in US English:

: positron emission tomography1positron emission tomography2

positron emission tomography2

noun

Medicine
  • 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.

Origin

1970s; earliest use found in Journal Nuclear Medicine.