Abstract

Radiofrequency and microwave radiation absorption can result in areas of localized high specific absorption rate (SAR) values. While the existence of hotspots with high SAR values has been known for some time, actually locating and measuring such regions is very difficult and is usually only attempted in the laboratory. Knowing the location of these high SAR values is essential for setting health and safety standards, designing exposure apparatus, such as hyperthermic applicatorsapplicators1, and in the treatment of accidental exposures. Although it is essential to identify the location of these high SAR values, it is impractical to place temperature probes throughout the body. Therefore, 3-dimensional anatomical models of the Sprague-Dawley rat, pigmy goat, rhesus monkey, phantom monkey2, and man are being developed for incorporation into mathematical algorithms.

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