A cylindrical metasurface improves B1+ homogeneity by 17.3%, transmit efficiency by 27.4%, and SAR-efficiency by 23% versus a dielectric waveguide in 7T traveling-wave MRI.
Alipour et al., ‘Improvement of magnetic resonance imaging using a wireless radiofrequency resonator array’, Sci
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Cylindrical Metasurface for Efficient Traveling-wave MRI at 7 T
A cylindrical metasurface improves B1+ homogeneity by 17.3%, transmit efficiency by 27.4%, and SAR-efficiency by 23% versus a dielectric waveguide in 7T traveling-wave MRI.