Decoupling isolator inspired by conformal metasurface for significant MRI enhancement

Qun Ren; Yuxin Lang; Zher Yian Ooi; Yaoyin Zhang; Haoyang Sun; Yanwei Pang

doi:10.1117/12.3039665

5 December 2024 Decoupling isolator inspired by conformal metasurface for significant MRI enhancement

Qun Ren, Yuxin Lang, Zher Yian Ooi, Yaoyin Zhang, Haoyang Sun, Yanwei Pang

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341806 (2024) https://doi.org/10.1117/12.3039665
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

The integration of surface coils and metamaterials presents a promising approach for enhancing the performance of Magnetic Resonance Imaging (MRI) systems. This combination offers substantial benefits in terms of local staging flexibility, allowing for improved imaging capabilities in specific region of interest. However, due to the coupling between the two, low signal-to-noise ratio (SNR) and low contrast resolution further prevent the future development of clinical MRI. In this paper, we propose a conformal metasurface decoupling isolator for magnetic field enhancement in 1.5T surface coil MRI systems. We use conformal optical theory and polarization conversion mechanisms to eliminate the coupling between metamaterial and radio frequency surface coil. In addition, the conformal theory can be applied to the analysis of any surface boundary condition, providing an effective method for the design of magnetic resonance metamaterials. Through conformal optical analysis, portable metasurface designs can be achieved, opening up a promising avenue for easy-to-use surface-coil MRI scanners.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qun Ren, Yuxin Lang, Zher Yian Ooi, Yaoyin Zhang, Haoyang Sun, and Yanwei Pang "Decoupling isolator inspired by conformal metasurface for significant MRI enhancement", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341806 (5 December 2024); https://doi.org/10.1117/12.3039665

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KEYWORDS

Optical isolators

Magnetic resonance imaging

Magnetism

Metamaterials

Metals

Electromagnetism

Design

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