Nonlinear distortion associated with high‐intensity focused ultrasound creates apparent displacements in acoustic radiation force imaging.

2010 ◽  
Vol 127 (3) ◽  
pp. 1759-1759
Author(s):  
Andrew B. Draudt ◽  
Robin O. Cleveland
Keyword(s):  
High Intensity ◽  
Focused Ultrasound ◽  
Nonlinear Distortion ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
High Intensity Focused Ultrasound

scholarly journals Guiding and Accumulation of Magnetic Nanoparticles Employing High Intensity Focused Ultrasound for Drug Targeting Applications

2019 ◽  
Vol 5 (1) ◽  
pp. 589-592
Author(s):  
Benedikt George ◽  
Michael Fink ◽  
Helmut Ermert ◽  
Stefan J. Rupitsch ◽  
Stefan Lyer ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
High Intensity ◽  
Drug Targeting ◽  
Focused Ultrasound ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
High Intensity Focused Ultrasound ◽  
Magnetic Drug Targeting ◽  
Treatment Technique

AbstractMagnetic Drug Targeting (MDT) is a cancer treatment technique that enables a local chemotherapy. In MDT, chemotherapeutic drugs are bound to magnetic nanoparticles and are accumulated in the tumor area by means of an external magnetic field. Unfortunately, a single magnet can only generate a pulling magnetic force. However, in some applications a pushing force on the nanoparticles could be advantageous. One way to realize pushing forces is to exploit the acoustic radiation force based on the nonlinearity of sound propagation in fluid media generated by a high intensity focused ultrasonic transducer. In this context, we built a test setup was built to investigate the utility of High Intensity Focused Ultrasound (HIFU) to generate a pushing force on the magnetic nanoparticles. The results show that the acoustic radiation force can be employed for particle guidance to achieve concentration differences similar to those obtained by using an electromagnet.

scholarly journals Measurement and modeling of acoustic radiation force of focused ultrasound beam on an elastic sphere in water

2017 ◽  
Author(s):  
Maria Karzova ◽  
Anastasia Nikolaeva ◽  
Sergey Tsysar ◽  
Vera Khokhlova ◽  
Oleg Sapozhnikov
Keyword(s):  
Focused Ultrasound ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Elastic Sphere ◽  
Ultrasound Beam

Radiation force on absorbing targets and power measurements of a high intensity focused ultrasound (HIFU) source

2010 ◽  
Vol 53 (10) ◽  
pp. 1780-1787 ◽  
Author(s):  
ZuWen Qian ◽  
ZheMin Zhu ◽  
ShiGong Ye ◽  
WenHua Jiang ◽  
HouQing Zhu ◽  
...  
Keyword(s):  
High Intensity ◽  
Focused Ultrasound ◽  
Radiation Force ◽  
High Intensity Focused Ultrasound ◽  
Power Measurements
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