CT artifacts

CT artifacts are common and can occur for various reasons. Knowledge of these artifacts is important because they can mimic pathology (e.g. partial volume artefact) or can degrade image quality to non-diagnostic levels. 

CT artifacts can be classified according to the underlying cause of the artifact. 

Patient-based artifacts
Physics-based artifacts
Hardware-based artifacts
Helical and multichannel artifacts

See also

Share article

Article information

rID: 25638
Section: Physics
Tags: refs, ct, artifact
Synonyms or Alternate Spellings:
  • CT artifact
  • CT artefacts
  • CT artefact

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1: motion artifact
    Drag here to reorder.
  • Drag
    Case 2: ring artifact
    Drag here to reorder.
  • Drag
    Case 3: motion and beam-hardening
    Drag here to reorder.
  • Drag
    Hyperdense cresce...
    Case 5: motion artifact mimicking SDH
    Drag here to reorder.
  • Drag
    Case 6: streak artifacts
    Drag here to reorder.
  • Drag
    Case 7: partial ring artifact
    Drag here to reorder.
  • Drag
    Case 8: incomplete projection
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.