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. 2019 Jun 25;9:9259. doi: 10.1038/s41598-019-45710-1

Figure 4.

Figure 4

Spearman’s rank tests between SNR improvement and experimental parameters. The SNR improvement derived from AOC was correlated against (a) PUFA content for breast tumour specimens, (b) PUFA content for healthy volunteers, (c) voxel volume for breast tumour specimens, and (d) water/fat ratio for breast tumour specimens. Each dot represents an individual measurement. Spearman’s rho and p-value are displayed. Correlation against voxel volume for healthy volunteers was not conducted since the voxel remained constant across the entire cohort. Moreover, since the voxel was positioned in the adipose tissue, water signal was not detected. Therefore, correlation between SNR improvement and water/fat ratio was not conducted for healthy volunteers. AOC = adaptively optimised combination, PUFA = polyunsaturated fatty acids, SNR = signal to noise ratio.