TERMIUM Plus®

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TOMOGRAPHIE POSITONS [1 record]

Record 1 2006-09-01

English

Subject field(s)
  • Tomography
DEF

A highly specialised research imaging technique using short lived radioactive substances - usually those made with a cyclotron.

OBS

Tomographic images are formed by computer analysis of photons detected from annihilation of positrons emitted by radionuclides incorporated into biochemical substances; the images, often quantitated with a colour scale, show the uptake and distribution of the substances in the tissue, permitting analysis and localization of metabolic and physiological function.

OBS

PET assesses metabolic activity and physiologic function rather than anatomic structure.

French

Domaine(s)
  • Tomographie
DEF

Technique d'imagerie médicale fondée sur la détection, par un appareillage approprié, des rayonnements associés aux positons [...] émis par une substance radioactive introduite dans l'organisme, et permettant d'obtenir des images en coupe (tomographies) de certains organes.

Key term(s)
  • T.E.P.

Spanish

Campo(s) temático(s)
  • Tomografía
DEF

Técnica radiográfica computadorizada que utiliza sustancias radiactivas para explorar la actividad metabólica de diversas estructuras corporales.

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