Generation of ultrasound radiation force with the use of time reversal acoustics principles

2005 ◽  
Vol 118 (3) ◽  
pp. 2005-2005 ◽  
Author(s):  
Armen Sarvazyan ◽  
Alexander Sutin
Keyword(s):  
Time Reversal ◽  
Radiation Force ◽  
Use Of Time ◽  
Ultrasound Radiation ◽  
Time Reversal Acoustics

Orthogonal Frequency Ultrasound Vibrometry

2010 ◽  
Author(s):  
Yi Zheng ◽  
Aiping Yao ◽  
Shigao Chen ◽  
Matthew W. Urban ◽  
Randy Kinnick ◽  
...  
Keyword(s):  
Wave Amplitude ◽  
Radiation Force ◽  
Sinusoidal Signal ◽  
Frequency Wave ◽  
Array Transducer ◽  
Ultrasound Radiation ◽  
Ultrasound Intensity ◽  
Tissue Region ◽  
Sinusoidal Signals ◽  
Frequency Ultrasound

New vibration pulses are proposed to increase the power of shear waves induced by ultrasound radiation force in a tissue region with a preferred spectral distribution. The new pulses are sparsely sampled from an orthogonal frequency wave composed of several sinusoidal signals. Those sinusoidal signals have different frequencies and are orthogonal to each other. The phase and amplitude of each sinusoidal signal are adjusted to control the shape of the orthogonal frequency wave. Amplitude of the sinusoidal signal is increased as its frequency increases to compensate for higher loss at higher frequency in the tissue region. The new vibration pulses and detection pulses can be interleaved for array transducer applications. The experimental results show that the new vibration pulses significantly increases induced tissue vibration with the same peak ultrasound intensity, compared with the binary vibration pulses.

Chirp excitation technique to enhance microbubble displacement induced by ultrasound radiation force

2009 ◽  
Vol 125 (3) ◽  
pp. 1410-1415 ◽  
Author(s):  
Yi Hu ◽  
Dong Zhang ◽  
Hairong Zheng ◽  
Xiufen Gong
Keyword(s):  
Radiation Force ◽  
Ultrasound Radiation

scholarly journals Pressure sensitivity kernels applied to time-reversal acoustics

2008 ◽  
Vol 124 (1) ◽  
pp. 98-112 ◽  
Author(s):  
Kaustubha Raghukumar ◽  
Bruce D. Cornuelle ◽  
William S. Hodgkiss ◽  
William A. Kuperman
Keyword(s):  
Time Reversal ◽  
Pressure Sensitivity ◽  
Time Reversal Acoustics

Temporal analysis of tissue displacement induced by a transient ultrasound radiation force

2005 ◽  
Vol 118 (5) ◽  
pp. 2829-2840 ◽  
Author(s):  
Samuel Callé ◽  
Jean-Pierre Remenieras ◽  
Olivier Bou Matar ◽  
Melouka Elkateb Hachemi ◽  
Frédéric Patat
Keyword(s):  
Radiation Force ◽  
Temporal Analysis ◽  
Ultrasound Radiation

scholarly journals Ultrasound radiation force enables targeted deposition of model drug carriers loaded on microbubbles

2006 ◽  
Vol 111 (1-2) ◽  
pp. 128-134 ◽  
Author(s):  
Aaron F.H. Lum ◽  
Mark A. Borden ◽  
Paul A. Dayton ◽  
Dustin E. Kruse ◽  
Scott I. Simon ◽  
...  
Keyword(s):  
Radiation Force ◽  
Drug Carriers ◽  
Ultrasound Radiation ◽  
Model Drug

The use of time reversal methods with Lamb waves to identify structural damage in a pipeline system

2006 ◽  
Author(s):  
Andrew B. Thien ◽  
Anthony D. Puckett ◽  
Gyuhae Park ◽  
Charles R. Farrar
Keyword(s):  
Time Reversal ◽  
Structural Damage ◽  
Lamb Waves ◽  
Pipeline System ◽  
Use Of Time
Sign in / Sign up

Export Citation Format

Share Document