High pressure focused ultrasound field characterization

2013 ◽  
Vol 134 (5) ◽  
pp. 4153-4153 ◽  
Author(s):  
Baki Karaböce ◽  
Ali Şahin ◽  
Eyüp Bilgiç ◽  
Enver Sadıkoğlu ◽  
Süreyya Nur
Keyword(s):  
High Pressure ◽  
Focused Ultrasound ◽  
Ultrasound Field

Thermal effect of microbubbles in the focused ultrasound field

2006 ◽  
Vol 120 (5) ◽  
pp. 3328-3328 ◽  
Author(s):  
Yukio Kaneko ◽  
Naoyuki Iida ◽  
Shu Takagi ◽  
Yoichiro Matsumoto
Keyword(s):  
Thermal Effect ◽  
Focused Ultrasound ◽  
Ultrasound Field

scholarly journals An Enhanced Numerical Model to Simulate Nonlinear Continuous Wave Ultrasound Propagation and the Resulting Temperature Response

2021 ◽  
Author(s):  
Shahram Mashouf
Keyword(s):  
Focused Ultrasound ◽  
Continuous Wave ◽  
Nonlinear Models ◽  
Operator Splitting ◽  
Temperature Response ◽  
High Intensity Focused Ultrasound ◽  
Propagation Model ◽  
Ultrasound Propagation ◽  
Ultrasound Field ◽  
Source Geometry

In this work a nonlinear CW ultrasound field propagation model based on a second-order operator splitting approach is studied and a number of significant enhancements are introduced and implemented. In this model the ultrasound field is calculated and propagated plane by plane and the effects of diffraction, nonlinearity and absorption are applied independently over incremental steps. This work completes the preceding works (Christopher and Parker 1991, Tavakkoli et al. 1998, Zemp et al. 2003, Williams et al. 2006) by introducing an arbitrary source geometry and excitation definition, full diffraction solution, enhanced pressure, enhanced power deposition rate and temperature prediction capabilities. The result is a particularly useful tool in carrying out simulations of high intensity focused ultrasound (HIFU) that includes temperature rise predictions. Comparisons are made with other codes in both linear and nonlinear regimes. Different dynamics of lesion formation are obtained in linear versus nonlinear models, specially at the onset of lesion creation during HIFU exposure.

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