Fig. 2. Computed tomography (CT) images acquired with wide collimation for (a) phantom arrangement 1 (Arr1) and (b) arrangement 2 (Arr2). CT images acquired with narrow collimation for (c) phantom Arr1 and (d) phantom Arr2. Window width and level were 200 HU and 15 HU, respectively.

Progress in Medical Physics 2021;32:165-71 https://doi.org/10.14316/pmp.2021.32.4.165

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