NDLI: Optimization of operating frequency of acoustic transducers for obtaining maximum temperature in HIFU based therapeutic ablation

Content Provider	IEEE Xplore Digital Library
Author	Bozkurt, A. Roy, R.B. Erguni, S.
Copyright Year	2012
Description	Author affiliation: Sabanci Univ., Istanbul, Turkey (Bozkurt, A.; Roy, R.B.) \|\| Dept. of Electr. & Electron. Eng., TOBB-Univ. of Econ. & Technol., Ankara, Turkey (Erguni, S.)
Abstract	High intensity Focus Ultrasound therapy relies on acoustic power absorbed by tissue. Acoustic absorption is a function of frequency: while a relatively lower frequency allows the beam to propagate farther in the tissue, the absorption, and, hence, the heat generated at the focal point is poor. At higher frequencies, on the other hand, tissue at the focal point is capable of absorbing most of the incoming acoustic energy, but loss along the propagation path significantly reduces the strength of the received signal. One figure of merit for finding the optimal frequency is the spatial peak of the acoustic power absorption density. In this paper, we analyze the same problem with the figure of merit taken as the peak temperature at the focal point and show that this may lead to a different frequency at which this value is maximized.
Starting Page	1
Ending Page	4
File Size	173847
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0147
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transducers Computational modeling Finite element analysis Heating Acoustics Temperature distribution Discrete Fourier transforms
Content Type	Text
Resource Type	Article

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