Frequency optimization in high intensity focused ultrasound

Date
2014-09
Advisor
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Source Title
IEEE International Ultrasonics Symposium, IUS 2014
Print ISSN
Electronic ISSN
Publisher
IEEE
Volume
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Pages
409 - 412
Language
English
Type
Conference Paper
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Abstract

In high intensity focused ultrasound (HIFU) the choice of transducer frequency depends on the target depth and tissue type. At high frequencies attenuation does not permit enough acoustical power to be transmitted to the target whereas at low frequencies the transmitted power is not absorbed efficiently. Hence, there exists an optimum frequency at which the power deposited at the target is maximum. In this study, we verified this relation experimentally using MR compatible focused transducers, ex-vivo tissue samples and magnetic resonance (MR) thermometry. © 2014 IEEE.

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Keywords
Tissue, Transducers, Ultrasonics, Acoustical power, Focused transducer, Frequency optimization, High frequency HF, High intensity focused ultrasound, MR-compatible, Optimum frequency, Transmitted power, Magnetic resonance
Citation
Published Version (Please cite this version)