title: The effect of finite-difference time-domain resolution and power-loss computation method on SAR values in plane-wave exposure of Zubal phantom.
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.
authors.affiliation: Helsinki University of Technology, Electromagnetics Laboratory, PO Box 3000, FI-02015 TKK, Finland. tero.uusitupa@tkk.fi
authors.forename: T M
authors.initials: TM
authors.lastname: Uusitupa
authors.forename: S A
authors.initials: SA
authors.lastname: Ilvonen
authors.forename: I M
authors.initials: IM
authors.lastname: Laakso
authors.forename: K I
authors.initials: KI
authors.lastname: Nikoskinen
mesh_terms: D001822:Body Burden; D003198:Computer Simulation; D004735:Energy Transfer; D004781:Environmental Exposure; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020342:Finite Element Analysis; D008954:Models, Biological; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014915:Whole-Body Counting / Q000295:instrumentation* / Q000379:methods*