A Method for Assessing the Effect of Metal Artifact Reduction Algorithms on Quantitative Characteristics of CT Images

The effect of metal artifact reduction algorithms on CT image quality was considered. The mean signal intensities and noise levels were compared for objects with different X-ray densities and spatial positions using phantom modeling. It was shown that, despite an improvement in the visual characteristics of the images, their quantitative characteristics may deteriorate: the change in the mean density reached in some cases 15%; the increase in noise, 30%.

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