Suppression of Metal Artifacts in CT Using a Reconstruction Procedure That Combines MAP and Projection Completion

  title={Suppression of Metal Artifacts in CT Using a Reconstruction Procedure That Combines MAP and Projection Completion},
  author={Catherine Lemmens and David Faul and Johan Nuyts},
  journal={IEEE Transactions on Medical Imaging},
Metal implants such as hip prostheses and dental fillings produce streak and star artifacts in the reconstructed computed tomography (CT) images. Due to these artifacts, the CT image may not be diagnostically usable. A new reconstruction procedure is proposed that reduces the streak artifacts and that might improve the diagnostic value of the CT images. The procedure starts with a maximum a posteriori (MAP) reconstruction using an iterative reconstruction algorithm and a multimodal prior. This… CONTINUE READING
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