Image acceleration in parallel magnetic resonance imaging by means of metamaterial magnetoinductive lenses

Details Image acceleration in parallel magnetic resonance imaging by means of metamaterial magnetoinductive lenses Image acceleration in parallel magnetic resonance imaging by means of metamaterial magnetoinductive lenses

2011-12-10

arxiv.org/abs/1112.2276v1

Physics

Medical Physics

10 pages, 4 figures

Scientific paper

Parallel magnetic resonance imaging (MRI) is a technique of image acceleration which takes advantage of the localization of the ?eld of view (FOV) of coils in an array. In this letter we show that metamaterial lenses based on capacitively-loaded rings can provide higher localization of the FOV. Several lens designs are systematically analyzed in order to ?nd the structure providing higher signal-to-noise-ratio. The magnetoinductive (MI) lens is ?nd to be the optimum structure and an experiment is developed to show it. The ability of the fabricated MI lenses to accelerate the image is quanti?ed by means of the parameter known in the MRI community as g{factor.

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