Figure 4

Error plotted for increasing defect size expressed as a percent of total volume. The horizontal axis and vertical axis represent the true volume fraction of the defect, and the estimation errors, respectively. In each plot, the solid and dashed lines represent the mean and ± 1.96 × standard deviation, respectively. 3D imaging resulted in a significantly lower bias/standard deviation (-0.44/1.49%) compared to 2D 4-slice (2.23/2.97%) and 2D 3-slice (2.59/3.18%).