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. 2017 Nov 2;11:41. doi: 10.1186/s13036-017-0084-1

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — SNR vs inverse birdcage volume RF coil diameter for the CuSO₄ solution (a), the carrot (b) and the mouse brain (c). Data from Table 2 are plotted and fitted using a linear least squares fit. The linear relationship between SNR and the inverse birdcage volume RF coil diameter (1/d) is shown on each of the graphs along with the correlation coefficient R ². The linear fits to the data all produced correlation coefficients close to 1, ranging from 0.9965 to 0.9999 indicating strong linear relationships