This work presents a flexible metasurface to improve the B1 and the image SNR of a transceiver quadrature birdcage coil for preclinical MRI applications at 7 T. The metasurface was not tuned so no passive components were used. The imaging phantom was entirely covered with the metasurface and produced an improvement of both B1 and the SNR. This easy-to-implement approach offers an alternative to improve the B1 field for preclinical applications at high field.
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Solís-Nájera et al. (2024) studied this question.
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