Comparison of FD-TD and Experimentally Determined Local SAR Values in a Rhesus Monkey Model

  • J. M. Ziriax
  • C. M. Furse
  • J. A. D’Andrea
  • J.-H. Gao
  • P. A. Mason
  • W. D. Hurt
  • O. P. Gandhi

Abstract

Microwave dosimetry has frequently relied on the used of phantoms to measure microwave dose for biological exposures. Here we report the use a homogeneous rhesus monkey phantom, the “green monkey”, to verify the results of a FD-TD computer model. The same techniques previously used to develop heterogeneous models of rat, goat and rhesus monkey from whole-body MRI scans1 were used to create a model of the “green monkey.” A phantom was prepared and subjected to a complete MRI scan. The resulting images were used to construct an accurate computer model of the phantom. FD-TD runs were performed at a range of frequencies using the geometry of the coded phantom. Local SAR values from the FD-TD output were used to select locations for local temperature measurements in the phantom.

Keywords

Microwave Calorimetry Sine Calorimeter Erwin 

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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • J. M. Ziriax
    • 1
  • C. M. Furse
    • 2
  • J. A. D’Andrea
    • 1
  • J.-H. Gao
    • 3
  • P. A. Mason
    • 4
  • W. D. Hurt
    • 5
  • O. P. Gandhi
    • 2
  1. 1.Naval Medical Research Institute DetachmentBrooks Air Force BaseUSA
  2. 2.Department of Electrical EngineeringUniversity of UtahSalt Lake CityUSA
  3. 3.Research Imaging Center Medical SchoolUniversity of Texas Health Science CenterSan AntonioUSA
  4. 4.Systems Research LaboratoriesSan AntonioUSA
  5. 5.Armstrong Laboratory - Radiofrequency Radiation DivisionBrooks Air Force BaseUSA

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