Figure 2.

Results of the bilateral simulation: (a) the volumes of interest (VOIs) in the O‐MAR reconstruction of the bilateral simulation with a significant ($p<0.01$) mean CT number difference larger than 5 HU in red; (b) a slice in the O‐MAR reconstruction showing the residual artifact around which all of these differences are located; and (c) the same slice in the nonO‐MAR reconstruction showing the original artifact. Both CT images have the same window width (300) and level (1200).