Fig. 2From: Leg muscle cross-sectional area measured by ultrasound is highly correlated with MRI(A-F) Correlation data including R2 values, and corresponding Bland-Altman plots for all muscles of interest in the leg. The dotted black line in the correlation plots is the line of best fit for the data. In the Bland Altman plots the blue line represents the bias, and the red lines represent upper and lower limits of agreement (LoA = Bias ± 1.96*SD)Back to article page