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- W2169353312 abstract "This paper evaluates a new, low-frequency finite-difference time-domain method applied to the problem of induced E-fields/eddy currents in the human body resulting from the pulsed magnetic field gradients in MRI. In this algorithm, a distributed equivalent magnetic current is proposed as the electromagnetic source and is obtained by quasistatic calculation of the empty coil's vector potential or measurements therein. This technique circumvents the discretization of complicated gradient coil geometries into a mesh of Yee cells, and thereby enables any type of gradient coil modelling or other complex low frequency sources. The proposed method has been verified against an example with an analytical solution. Results are presented showing the spatial distribution of gradient-induced electric fields in a multi-layered spherical phantom model and a complete body model." @default.
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- W2169353312 date "2004-08-01" @default.
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- W2169353312 title "A distributed equivalent magnetic current based FDTD method for the calculation of E-fields induced by gradient coils" @default.
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- W2169353312 doi "https://doi.org/10.1016/j.jmr.2004.05.011" @default.
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