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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Magn Reson Med. 2017 Jul 4;79(3):1789–1803. doi: 10.1002/mrm.26803

Figure 6. Contribution of divergence-free current modes to the UISNR on a transverse plane vs. main magnetic field strength, for different sample size and properties.

Figure 6

At low field, divergence-free current modes were sufficient to capture nearly 100% of the best possible SNR. As the main magnetic field strength increased, divergence-free contributions accounted for a lower percentage of the UISNR, especially for larger sample size, suggesting that it is not possible to approach the optimal performance with loop arrays.