Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system

Woo Cheol Choi, Seonho Lim, Young Joong Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An orthogonally rotated radiating array applicator is proposed to enhance the therapeutic suitability of superficial hyperthermia treatment system. The proposed applicator provides an optimal heating effect to widely distributed tumors by configuring the orthogonal arrangement of radiating elements. Each element causes a destructive interference of electromagnetic field at the center of the array applicator, so as to prevent an overheating at the central region. The electric field and the specific absorption rate (SAR) are evenly formed with a circular-shaped distribution, which allows for the uniform heat deposition on the therapeutic area. The achieved ETA ratio is 152.6 %, corresponding to 44 % increase, as compared with the single element operation. The proposed hyperthermia applicator not only leads to a wide therapeutic coverage by the orthogonally rotated array configuration, but it also satisfies the thermal requirement for tumor necrosis.

Original languageEnglish
Title of host publication2015 International Symposium on Antennas and Propagation, ISAP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9784885523038
Publication statusPublished - 2016 Apr 4
EventInternational Symposium on Antennas and Propagation, ISAP 2015 - Hobart, Australia
Duration: 2015 Nov 92015 Nov 12

Publication series

Name2015 International Symposium on Antennas and Propagation, ISAP 2015

Other

OtherInternational Symposium on Antennas and Propagation, ISAP 2015
CountryAustralia
CityHobart
Period15/11/915/11/12

Fingerprint

Applicators
hyperthermia
Heating
heating
tumors
Tumors
necrosis
electromagnetic fields
Electromagnetic fields
interference
heat
requirements
electric fields
causes
Electric fields
configurations
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Radiation
  • Electrical and Electronic Engineering

Cite this

Choi, W. C., Lim, S., & Yoon, Y. J. (2016). Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system. In 2015 International Symposium on Antennas and Propagation, ISAP 2015 [7447303] (2015 International Symposium on Antennas and Propagation, ISAP 2015). Institute of Electrical and Electronics Engineers Inc..
Choi, Woo Cheol ; Lim, Seonho ; Yoon, Young Joong. / Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system. 2015 International Symposium on Antennas and Propagation, ISAP 2015. Institute of Electrical and Electronics Engineers Inc., 2016. (2015 International Symposium on Antennas and Propagation, ISAP 2015).
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abstract = "An orthogonally rotated radiating array applicator is proposed to enhance the therapeutic suitability of superficial hyperthermia treatment system. The proposed applicator provides an optimal heating effect to widely distributed tumors by configuring the orthogonal arrangement of radiating elements. Each element causes a destructive interference of electromagnetic field at the center of the array applicator, so as to prevent an overheating at the central region. The electric field and the specific absorption rate (SAR) are evenly formed with a circular-shaped distribution, which allows for the uniform heat deposition on the therapeutic area. The achieved ETA ratio is 152.6 {\%}, corresponding to 44 {\%} increase, as compared with the single element operation. The proposed hyperthermia applicator not only leads to a wide therapeutic coverage by the orthogonally rotated array configuration, but it also satisfies the thermal requirement for tumor necrosis.",
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Choi, WC, Lim, S & Yoon, YJ 2016, Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system. in 2015 International Symposium on Antennas and Propagation, ISAP 2015., 7447303, 2015 International Symposium on Antennas and Propagation, ISAP 2015, Institute of Electrical and Electronics Engineers Inc., International Symposium on Antennas and Propagation, ISAP 2015, Hobart, Australia, 15/11/9.

Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system. / Choi, Woo Cheol; Lim, Seonho; Yoon, Young Joong.

2015 International Symposium on Antennas and Propagation, ISAP 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7447303 (2015 International Symposium on Antennas and Propagation, ISAP 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Choi WC, Lim S, Yoon YJ. Orthogonally rotated radiating array for improving heating uniformity in hyperthermia system. In 2015 International Symposium on Antennas and Propagation, ISAP 2015. Institute of Electrical and Electronics Engineers Inc. 2016. 7447303. (2015 International Symposium on Antennas and Propagation, ISAP 2015).