National Cancer Institute Thesaurus

Last uploaded: February 21, 2019
Preferred Name

Contrast Agent

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

Contributing_Source

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.

FULL_SYN

Contrast Medium

Contrast

Contrast Drugs

contrast material

Has_NICHD_Parent

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C1909

label

Contrast Agent

Legacy_Concept_Name

Contrast_Agent

NICHD_Hierarchy_Term

Contrast Agent

Preferred_Name

Contrast Agent

prefixIRI

C390

prefLabel

Contrast Agent

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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