Artifacts in CT: recognition and avoidance.

  title={Artifacts in CT: recognition and avoidance.},
  author={Julia F Barrett and Nicholas Keat},
  journal={Radiographics : a review publication of the Radiological Society of North America, Inc},
  volume={24 6},
Artifacts can seriously degrade the quality of computed tomographic (CT) images, sometimes to the point of making them diagnostically unusable. To optimize image quality, it is necessary to understand why artifacts occur and how they can be prevented or suppressed. CT artifacts originate from a range of sources. Physics-based artifacts result from the physical processes involved in the acquisition of CT data. Patient-based artifacts are caused by such factors as patient movement or the presence… CONTINUE READING
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