Abstract #3503

Liquid metal based deformable transmitter for MR imaging: A feasibility study

Qi Duan¹, Hai Lu^2,3, Chris Cooper⁴, Xiaopeng Zong³, Jeff H. Duyn¹, Michael D. Dickey⁴, and Shumin Wang^2,3

¹Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States, ²UNC/NCSU Joint Department of Biomedical Engineering, University of North Carolina of Chapel Hill, Chapel Hill, NC, United States, ³Biomedical Research Imaging Center, University of North Carolina of Chapel Hill, Chapel Hill, NC, United States, ⁴Department of Chemical & Biomolecular Engineering, NC State University, Raleigh, NC, United States

Recent advances of liquid metal technology have made it possible to build deformable RF transmitters. Such coils have many attractive features for MR, such as easy reconfiguration, flexibility, and self-healing capabilities. However, given that the conductivity of liquid metal is more than an order of magnitude lower than the copper, it is unclear whether it is suitable to be used as a RF transmitter in MR applications. In this work, such feasibility was demonstrated by comparing the performance of two electric dipole antennas with similar size, one made of liquid metal and the other one made of copper, on a 7T scanner.

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