Preferred Label : Positron Emission Tomography;
NCIt synonyms : Positron-Emission Tomography; Medical Imaging, Positron Emission Tomography;
NCIt related terms : positron emission tomography scan; Pet Scan; proton magnetic resonance spectroscopic imaging; PET; PT; Positron emission tomography (procedure);
NCIt definition : A technique for measuring the gamma radiation produced by collisions of electrons
and positrons (anti-electrons) within living tissue. In positron emission tomography
(PET), a subject is given a dose of a positron-emitting radionuclide attached to a
metabolically active substance (for example, 2-fluoro-2-deoxy-D-glucose (FDG), which
is similar to a naturally occurring sugar, glucose, with the addition of a radioactive
fluorine atom). When living tissue containing the positron emitter is bombarded by
electrons, gamma radiation produced by collisions of electrons and positrons is detected
by a scanner, revealing in fine detail the tissue location of the metabolically-active
substance administered.;
Alternative definition : CDISC: An imaging technique for measuring the gamma radiation produced by collisions
of electrons and positrons (anti-electrons) within living tissue. In positron emission
tomography (PET), a subject is given a dose of a positron-emitting radionuclide attached
to a metabolically active substance. A scanner reveals the tissue location of the
metabolically-active substance administered.; NCI-GLOSS: A procedure in which a small amount of radioactive glucose (sugar) is injected
into a vein, and a scanner is used to make detailed, computerized pictures of areas
inside the body where the glucose is used. Because cancer cells often use more glucose
than normal cells, the pictures can be used to find cancer cells in the body.;
Codes from synonyms : CDR0000046140; CDR0000046218; CDR0000044361; 82918005;
Origin ID : C17007;
UMLS CUI : C0032743;
Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- False automatic mappings
- Semantic type(s)
- UMLS correspondences (same concept)
- concept_is_in_subset
