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Microsecond-Range Dynamics of Tissues Under the Action of Acoustic Radiation Force

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The results of theoretical and experimental studies are presented for the action of acoustic radiation force (ARF) generated by short (microsecond range) ultrasonic pulses on the liquid-liquid and liquid-gel interfaces, which mimic the boundaries within soft biological tissues. For the boundaries between two liquids, the Laplace equation for the nearfield zone of the interface is solved. For the liquid-gel interface, the shear motions and the effect of viscosity were also considered. Both "pushing" and "pulling" action on the interface are described. In the experiments, the sub-nanometer range displacements induced by ARF in phantoms mimicking soft tissues were evaluated by measuring the interface velocity. The theoretical findings are in agreement with the experimental results.
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Document Type: Research Article

Publication date: March 1, 2018

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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