Beat frequency ultrasonic microsphere contrast agent detection system | Zendy

Robert A. Pretlow | Zendy

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Beat frequency ultrasonic microsphere contrast agent detection system

Author(s) -

Robert A. Pretlow

Publication year - 1997

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.420295

Subject(s) - microsphere , ultrasonic sensor , acoustics , contrast (vision) , beat (acoustics) , materials science , computer science , biomedical engineering , physics , medicine , artificial intelligence , chemical engineering , engineering

A system for and method of detecting and measuring concentrations of an ultrasonically-reflective microsphere contrast agent involving detecting non-linear sum and difference beat frequencies produced by the microspheres when two impinging signals with non-identical frequencies are combined by mixing. These beat frequencies can be used for a variety of applications such as detecting the presence of and measuring the flow rates of biological fluids and industrial liquids, including determining the concentration level of microspheres in the myocardium.

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