Numerical and experimental analysis of a wire medium collimator for magnetic resonance imaging

Radu, Xavier;Lapeyronnie, A.;Craeye, Christophe
(2008) 1st International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials 2007) — Location: Univ Roma Tre, Rome(Italy) (22.October.2007)

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This article analyzes the collimation behavior of a wire medium devoted to magnetic resonance imaging. In the first part, the point-spread function of a doubly infinite wire medium is analyzed for the magnetic field with the help of the array scanning method. In the second part, we present two methods to evaluate the field transmission by the wire medium based on the measure of the magnetic field computed with the method of moments. Simulation results obtained with the MoM are shown. This behavior is validated in the third part with experimental results obtained with a magnetic resonance imaging instrument at the University Hospital of Liege with a straight-wires collimator. Both simulation and experimental results confirm the ability of the wire medium to transfer electromagnetic fields in magnetic resonance imaging operational conditions.
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Radu, X., Lapeyronnie, A., & Craeye, C. (2008). Numerical and experimental analysis of a wire medium collimator for magnetic resonance imaging. Electromagnetics, 28(7), 531-543. https://doi.org/10.1080/02726340802322734 (Original work published 2008)