Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-28T20:53:29.007Z Has data issue: false hasContentIssue false
  • English
  • Français

Bi-layered/tri-layered bio-media in direct contact with metal diagonal horn for hyperthermia

Published online by Cambridge University Press:  11 May 2018

Soni Singh ,
Bhagirath Sahu  and
S. P. Singh Open the ORCID record for S. P. Singh [Opens in a new window]
Soni Singh
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221 005, India
Bhagirath Sahu
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221 005, India
S. P. Singh*
Affiliation:
Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi, UP 221 005, India
*
Author for correspondence: S. P. Singh, E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, theoretical/simulation study of specific absorption rate (SAR) and/or temperature distributions in a bi-layered bio-media (fat and muscle)/realistic tri-layered bio-media (skin, fat, and muscle layers) in direct contact with water-loaded metal diagonal horn (MDH) designed at 915 MHz are investigated. The effects of fat thickness on the input reflection coefficient, reflection coefficient at the interface between the MDH and the bi-layered bio-media, and the SAR distribution in the bi-layered bio-media are also studied through simulation and theoretically at 915 MHz. Further, the SAR parameters such as penetration depth and effective field size inside the bi-layered bio-media due to the MDH are evaluated theoretically and the theoretical results are compared with the corresponding simulation results. Finally, SAR and temperature distributions in tri-layered bio-media without and with embedded irregular/oval-shaped tumor are provided for demonstrating the hyperthermia performance of the MDH applicator.

Keywords

Bi-layered/tri-layered bio-mediahyperthermiametal diagonal hornspecific absorption ratethermal analysis
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 8 , October 2018 , pp. 921 - 932
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Chuang, H-R (1997) Numerical computation of fat layer effects on microwave near-field radiation to the abdomen of a full-scale human body model. IEEE Transactions on Microwave Theory and Techniques 45(1), 118–125.Google Scholar
2.Chou, CK et al. (1990) Effects of fat thickness on heating patterns of the microwave applicator MA-151 at 631 and 915 MHz. International Journal of Radiation Oncology BiologyPhysics 19(4), 1067–1070.Google Scholar
3.Curto, S et al. (2009) Compact patch antenna for electromagnetic interaction with human tissue at 434 MHz. IEEE Transactions on Antennas and Propagation 57, 2564–2571.Google Scholar
4.Lin, JC, Kantor, G and Ghods, A (1982) A class of new microwave therapeutic applicators. Radio Science 17(5S), 119S–123S.Google Scholar
5.Van Rhoon, GC, Rietveld, PJ and Van Der Zee, J (1998) A 433 MHz lucite cone waveguide applicator for superficial hyperthermia. International Journal of Hyperthermia 14(1), 13–27.Google Scholar
6.Guy, AW (1971) Electromagnetic fields and relative heating patterns due to a rectangular aperture source in direct contact with bilayered biological tissue. IEEE Transactions on Microwave Theory and Techniques 19(2), 214–223.Google Scholar
7.Maity, S, Barman, KR and Bhattacharjee, S (2017) Silicon-based technology:circularly polarized microstrip patch antenna at ISM bandwith miniature structure using fractal geometry for biomedical application. Microwave and Optical Technology Letters 60, 93–101.Google Scholar
8.Bhattacharjee, S et al. (2016) Performance enhancement of implantable medical antenna using differential feed technique. Engineering Science and Technology, an International Journal 19, 642–650.Google Scholar
9.Paulides, MM et al. (2013) Simulation techniques in hyperthermia treatment planning. International Journal of Hyperthermia 29(4), 346–357.Google Scholar
10.Singh, S and Singh, SP (2014) Water-loaded metal diagonal horn applicator for hyperthermia. IET Microwaves, Antennas & Propagation 9(8), 814–821.Google Scholar
11.Singh, S and Singh, SP (2015) Theoretical and simulation studies on water-loaded metal diagonal horn antenna for hyperthermia application. Progress In Electromagnetics Research C 58, 105–115.Google Scholar
12.Gupta, RC and Singh, SP (2005) Analysis of the SAR distributions in three-layered bio-media in direct contact with a water-loaded modified box-horn applicator. IEEE Transactions on Microwave Theory and Techniques 53(9), 2665–2671.Google Scholar
13.Trefna, HD et al. (2017) Quality assurance guidelines for superficial hyperthermia clinical trials: I. Clinical requirements. International Journal of Hyperthermia 33(4), 471–482.Google Scholar
14.CST [MWS]. [Online]. http://www.cst.com.Google Scholar
15.Love, AW (1976) Electromagnetic horn antennas. New York, NY: IEEE Press.Google Scholar
16.Compton, RT (1964) The admittance of aperture antenna radiating into lossy media. Antenna Laboratory. OH, Ohio State University, Research Foundation, Columbus.Google Scholar
17.Harrington, RF (1961) Time–harmonic Electromagnetic field. New York, NY: McGraw–Hill, pp. 123–135.Google Scholar
18.Gabriel, C (1996) Compilation of the dielectric properties of body tissues at RF and microwave frequencies. London, TX: Brooks AFB. (Tech. Rep. AL/OE–TR–1996–0037).Google Scholar
19.Michaelson, SM and Lin, JC (1987) Biological effects and health implications of radiofrequency radiation. New York, NY: Plenum Press.Google Scholar
20.Pennes, HH (1948) Analysis of tissue and arterial blood temperatures in the resting human forearm. Journal of Applied Physiology 1, 93–122.Google Scholar
21.Gong, Y and Wang, G (2009) Superficial tumor hyperthermia with flat left-handed metamaterial lens. Progress In Electromagnetics Research 98, 389–405.Google Scholar
22.Nikawa, Y et al. (1986) A direct-contact microwave lens applicator with a microcomputer-controlled heating system for local hyperthermia. IEEE Transactions on Microwave Theory and Techniques 34(5), 626–630.Google Scholar