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. 2022 Apr 26;35(6):875–894. doi: 10.1007/s10334-022-01007-5

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Fig. 8 — a Photographs of an in-vivo setup at 1.5 T using a commercial eight-channel receive array coil with ceramic blocks (ε_r ~ 4500) placed around the wrist of a healthy volunteer. b T₁-weighted wrist images without blocks, and c with blocks. The SNR is approximately 45% higher with the blocks over an ROI comprising the entire imaged volume. The power level from the transmitter coil was 40% lower with blocks compared to without blocks. Figure

reproduced from Ref. [42]