Proposal of Cylindrical Rolled-Up Metamaterial Lenses for Magnetic Resonance Imaging Application and Preliminary Experimental Demonstration

doi:10.2528/PIER11121402

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Progress In Electromagnetics Research	ISSN: 1070-4698, E-ISSN: 1559-8985

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PROPOSAL OF CYLINDRICAL ROLLED-UP METAMATERIAL LENSES FOR MAGNETIC RESONANCE IMAGING APPLICATION AND PRELIMINARY EXPERIMENTAL DEMONSTRATION

By Y. Xie, J. Jiang, and S. He

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Abstract:
In this paper, we propose a cylindrical rolled-up negative permeability metamaterial (MM) lens for magnetic resonance imaging (MRI), and some analyses are given. The proposed cylindrical MM lens is fabricated by rolling a MM slab (constituted with capacitive-loaded copper split rings) into a tube that resembles a hollow ring. It can focus the field of a magnetic line source, which can increase the penetration depth and improve the sensitivity of a surface coil. The proposed cylindrical MM lens can also improve the discrimination of the signals coming from two independent sources. A clinical experiment is carried out in a General Electric Signa 1.5 T MRI system in order to verify the focusing ability of the proposed device.

Citation:
Y. Xie, J. Jiang, and S. He, "Proposal of Cylindrical Rolled-Up Metamaterial Lenses for Magnetic Resonance Imaging Application and Preliminary Experimental Demonstration," Progress In Electromagnetics Research, Vol. 124, 151-162, 2012.
doi:10.2528/PIER11121402
http://www.jpier.org/PIER/pier.php?paper=11121402

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