DocumentCode
1996244
Title
Effects of nonlinearity on propagation through the skull
Author
Pinton, Gianmarco F. ; Aubry, Jean-Francois ; Tanter, Mickael ; Fink, Mathias
Author_Institution
Lab. Ondes et Acoust., ESPCI ParisTech, Paris, France
fYear
2009
fDate
20-23 Sept. 2009
Firstpage
389
Lastpage
392
Abstract
As an ultrasound wave propagates nonlinearly energy is transferred to higher frequencies where it is more strongly attenuated. Compared to soft tissue the skull has a strongly heterogeneous material parameters. We characterize with experiments and establish a numerical method that can describe the effects of the skull on the nonlinear components of ultrasonic wave propagation for application to high intensity focused ultrasound (HIFU) therapy in the brain.
Keywords
bone; brain; nonlinear acoustics; tumours; ultrasonic propagation; ultrasonic reflection; ultrasonic refraction; ultrasonic scattering; ultrasonic therapy; attenuation; brain; heterogeneous material parameters; high intensity focused ultrasound therapy; nonlinearity effects; numerical method; skull; ultrasound wave propagation; Acoustic propagation; Attenuation; Computed tomography; Finite difference methods; Frequency; Nonlinear acoustics; Nonlinear equations; Skull; UHF propagation; Ultrasonic imaging;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location
Rome
ISSN
1948-5719
Print_ISBN
978-1-4244-4389-5
Electronic_ISBN
1948-5719
Type
conf
DOI
10.1109/ULTSYM.2009.5441636
Filename
5441636
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