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Exemplar images of the anthropomorphic head phantom (1st column) imaged using kVCT (2nd column), sMVCT HU (3rd column), MVCT HU (4th column), and HU difference heat maps for kVCT versus MVCT (5th column) and sMVCT versus MVCT (6th column) shown at axial levels of the skull (top row) and jaw (bottom row). The HU scale used in the difference maps is shown on the right.
