About: Perflutren Protein-Type A Microspheres     Goto   Sponge   NotDistinct   Permalink

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AttributesValues
rdf:type
rdfs:label
  • Perflutren Protein-Type A Microspheres
rdfs:subClassOf
Semantic_Type
  • Organic Chemical
  • Indicator, Reagent, or Diagnostic Aid
Preferred_Name
  • Perflutren Protein-Type A Microspheres
UMLS_CUI
  • C1509955
PDQ_Open_Trial_Search_ID
  • 471234
PDQ_Closed_Trial_Search_ID
  • 471234
Legacy_Concept_Name
  • Perflutren_Protein-Type_A_Microspheres
FULL_SYN
  • Perflutren Protein-Type A MicrospheresPTNCI
  • OptisonBRNCI
DEFINITION
  • A sterile non-pyrogenic suspension of microspheres of human serum albumin with the stable, high-molecular-weight fluorocarbon gas perflutren, used as a contrast enhancement agent for ultrasound procedures. Because the acoustic impedance of perflutren protein-type A microspheres is much lower than that of blood, impinging ultrasound waves are scattered and reflected at the microsphere-blood interface and may be visualized with ultrasound imaging. At the frequencies used in adult echocardiography (2-5 MHZ) the microspheres resonate, which further increases the extent of ultrasound scattering and reflection.NCI
code
  • C61105
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