Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction
D R Wayer1, N Y Kim1, B J Otto1
1From the Department of Radiology (D.R.W., N.Y.K., B.J.O., A.M.G., A.D.K.), University of Wisconsin, Madison, Wisconsin.
AJNR. American Journal of Neuroradiology
|October 5, 2019
Abstract:
Metal hardware serves as a common artifact source in spine CT imaging in the form of beam-hardening, photon starvation, and streaking. Postprocessing metal artifact reduction techniques have been developed to decrease these artifacts, which has been proved to improve visualization of soft-tissue structures and increase diagnostic confidence. However, metal artifact reduction reconstruction introduces its own novel artifacts that can mimic pathology.
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