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Reconstructed cylinder images and profiles used to calculate CT voxel size. (a) Cylinder made of polyethylene. (b) Cross-sectional image used to determine voxel size in the X and Y direction. (c) The longitudinal section image used to determine the voxel size in the Z direction. (d) Profile and line segment used to determine voxel size in the X and Y direction. (e) Profile and line segment used to determine voxel size in the Z direction.
