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Reconstructed axial images of patient 1: Column (a) was reconstructed without motion compensation, and columns (b)–(d) were obtained after the 1, 3, and 9 ME-MCR iterations, respectively. The insets magnify the region indicated by the solid box. The window width and level were 500 HU and 50 HU. The same window-level setting is used in the following figures unless noted otherwise.
