Figure 9.

Impact of noise on homogeneous tissues of specified number of voxels with varying levels of noise. (a) The ratio of the influence of the variation (${\sigma }_{\text{SPR}}/\sqrt{N}$, N is the number of voxels) vs. mean shift (ΔSPR). Gray dashed rectangle was magnified to visualize values near 1. (b) The range uncertainty (95^th percentile) resulting from the noise. Both HU_L and HU_H were added with Gaussian random noise.