The effect of finite-difference time-domain resolution and power-loss computation method on SAR values in plane-wave exposure of Zubal phantom

Physics in Medicine and Biology
Tero UusitupaK I Nikoskinen

Abstract

In this paper, the anatomically realistic body model Zubal is exposed to a plane wave. A finite-difference time-domain (FDTD) method is used to obtain field data for specific-absorption-rate (SAR) computation. It is investigated how the FDTD resolution, power-loss computation method and positioning of the material voxels in the FDTD grid affect the SAR results. The results enable one to estimate the effects due to certain fundamental choices made in the SAR simulation.

References

Feb 1, 1994·Medical Physics·I G ZubalP B Hoffer
Nov 1, 1996·Physics in Medicine and Biology·C GabrielE Corthout
Aug 17, 2006·Physics in Medicine and Biology·Jianqing WangSoichi Watanabe
Nov 18, 2006·Physics in Medicine and Biology·R P Findlay, P J Dimbylow
Nov 3, 2007·Physics in Medicine and Biology·Peter Dimbylow, Wesley Bolch

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Citations

Jul 12, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Frank H GeschewskiN Jon Shah
Jul 22, 2010·Physics in Medicine and Biology·Ilkka LaaksoSami Ilvonen

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