Preferred Label : Perflutren Protein-Type A Microspheres;
NCIt 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.;
Drug name : Optison;
Origin ID : C61105;
UMLS CUI : C1509955;
Semantic type(s)
- concept_is_in_subset
