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

Physics in Medicine and Biology
Robert L McIntoshAndrew W Wood

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.

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Citations

Apr 25, 2014·International Journal of Environmental Research and Public Health·Yi Cao, Jian Tong
Jun 24, 2014·IEEE Transactions on Bio-medical Engineering·Serena FiocchiPaolo Ravazzani
Mar 28, 2012·Physics in Medicine and Biology·A Peyman, C Gabriel
Sep 27, 2016·International Journal of Environmental Research and Public Health·Andrew W WoodRobert L McIntosh

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