Frequency optimization in high intensity focused ultrasound

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Frequency_optimization_in_high_intensity_focused_ultrasound.pdf (119.23 KB)

Date

2014-09

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Source Title

IEEE International Ultrasonics Symposium, IUS 2014

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IEEE

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Pages

409 - 412

Language

English

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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

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http://hdl.handle.net/11693/27785

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https://doi.org/10.1109/ULTSYM.2014.0101

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Department of Electrical and Electronics Engineering