National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Contrast Agent

Synonyms

Contrast Agent

Contrast Medium

Contrast Drugs

contrast material

Contrast

Definitions

Substances administered during imaging procedures that allows delineation of internal structures. Contrast agents appear opaque due to the difference in absorption of X-rays or other electromagnetic waves and surrounding tissue.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C390

ALT_DEFINITION

A dye or other substance that helps show abnormal areas inside the body. It is given by injection into a vein, by enema, or by mouth. Contrast material may be used with x-rays, CT scans, MRI, or other imaging tests.

code

C390

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C89506

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C90259

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116978

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116977

Contributing_Source

CTRP

NICHD

DEFINITION

Substances administered during imaging procedures that allows delineation of internal structures. Contrast agents appear opaque due to the difference in absorption of X-rays or other electromagnetic waves and surrounding tissue.

DesignNote

Positive contrast agents have greater absorption and structures appear light. Negative contrast agents have a lesser degree of absorption and structures appear dark.

Display_Name

Contrast Agent

FULL_SYN

Contrast Agent

Contrast Medium

Contrast Drugs

contrast material

Contrast

label

Contrast Agent

Legacy Concept Name

Contrast_Agent

Preferred_Name

Contrast Agent

prefixIRI

Thesaurus:C390

Semantic_Type

Indicator, Reagent, or Diagnostic Aid

UMLS_CUI

C0009924

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C1966

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