Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/77809

Title

Comparison of radiofrequency exposure of a mouse dam and foetuses at 900 MHz

Author(s)

McIntosh, Robert L.;  Deppeler, Lauren;  Oliva, Megan;  Parente, John;  Tambuwala, Faiyaz;  Turner, Stephen;  Winship, David;  Wood, Andrew W.

Abstract

In vivo studies involving radiofrequency (RF) exposure of rodents require detailed dosimetric analysis to enable correct interpretation of biological outcomes. Detailed anatomical models of mice - a female, a pregnant female, a male and a foetus - have been developed for analyses using finite difference numerical techniques. The mouse models, consisting of 49 tissues, will be made freely available to the research community. In this note, the pregnant mouse model, which included eight mature foetuses, was utilized specifically to consider (a) the RF dosimetry in a radial cavity exposure system operated at a frequency of 900 MHz and (b) a 900 MHz plane wave exposure. A comparison was made between the exposure of the mouse dam and the foetuses as specified by the specific energy absorption rate (SAR) and the resultant temperature change. In general, the SAR levels in the foetuses were determined to be slightly lower (around 14% lower than the average values of the dam) and the peak temperature increase was significantly lower (45%) than the values in the dam.

Publication type

Journal article

Research centre

Swinburne University of Technology

Source

Physics in Medicine and Biology, Vol. 55, no. 4 (Feb 2010), pp. N111-N122

Publication year

2010

FOR Code(s)

0299 Other Physical Sciences;  0903 Biomedical Engineering

Keyword(s)

Foetuses;  In vivo;  Mice;  Radiofrequency exposure

Publisher

Institute of Physics Publishing

ISSN

0031-9155

Publisher URL

http://dx.doi.org/10.1088/0031-9155/55/4/N02

Copyright

Copyright © 2010 Institute of Physics and Engineering in Medicine.

Peer reviewed