NDLI: Numerical simulation of annular-phased arrays of dipoles for hyperthermia of deep-seated tumors

Content Provider	IEEE Xplore Digital Library
Author	Jin-Yuan Chen Gandhi, O.P.
Copyright Year	1964
Abstract	The authors have used the finite-difference-time-domain (FDTD) method to calculate the specific absorption rate (SAR) distributions from an annular-phased array of eight dipole antennas coupled through water 'boluses' in anatomically based three-dimensional models of the human body. They evaluated the effect of tapered bolus chambers, frequency (100-120 MHz), dipole length (17-30 cm), and phase and amplitude of power to the various dipoles on the ability to focus energy in the region of deep-seated tumors in the prostate and the liver. Assuming tumor conductivity and permittivity to be similar or slightly higher than surrounding normal tissues, calculations indicate that adjustment of the noted parameters should result in considerable improvement in focusing of SAR distributions in tumor-bearing regions. If such calculations can be shown to correctly predict empirical measurements from complex inhomogeneous (although not necessarily anatomically correct) phantoms, they may be useful for hyperthermia treatment planning based on patient-specific anatomic models.<>
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	8
File Size	671563
Starting Page	209
Ending Page	216
File Format	PDF
ISSN	00189294
Volume Number	39
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical simulation Hyperthermia Finite difference methods Liver neoplasms Time domain analysis Specific absorption rate Antenna arrays Dipole antennas Biological system modeling Humans
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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Comments, with reply, on Numerical simulation of annular-phased arrays of dipoles for hyperthermia of deep-seated tumors by J.-Y. Chen and O.P. Gandhi

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