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To better simulate RF field behavior in the human head for MRI applications, dyadic Green's function (DGF)/method of moment (DGF/MOM) -based solutions of the electromagnetic field (EMFs) inside a head-sized, stratified sphere in different MRI coils are presented. The lossy, multilayered spherical head phantom has similar radial conductivity and permeability profiles as human head and is loaded in...
We have recently introduced the concept of whole-body asymmetric MRI systems. In this theoretical study, we investigate the PNS characteristics of whole-body asymmetric gradient systems as compared to conventional symmetric systems. Recent experimental evidence supports the hypothesis of transverse gradients being the largest contributor of PNS due to induced electric currents. Asymmetric head gradient...
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