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Fig 3. Regression analysis of the mean BF values in the tumor with the SUVmean ratios of tumor-to-nontumor tissue. There is a positive significant correlation (r = 0.64; P = .01) in the tumor ROIs. Linear regression analysis showed Ratio SUVmean = 0.14 x BF–3.48 (R2 = 0.42; P = .01) (regression line). The curved dashed lines show the 95% confidence intervals for means. The dashed line depicts the line of perfect agreement (equation line).
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