Skip to main content
An official website of the United States government

perflutren

A fluorinated hydrocarbon and gaseous substance used as an imaging contrast agent. After administration in microsphere form, perflutren exhibits lower acoustic impedance than blood and improves ultrasound signaling.
Synonym:freon 218
octafluoropropane
perfluoropropane
US brand name:Definity
Abbreviation:PFP
Search NCI's Drug Dictionary