Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging

Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging

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 str...

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Veröffentlicht in:American journal of neuroradiology : AJNR 2019-11, Vol.40 (11), p.1973-1975
Hauptverfasser: Wayer, D R, Kim, N Y, Otto, B J, Grayev, A M, Kuner, A D
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Humans
Image Processing, Computer-Assisted - methods
Metals
Prostheses and Implants
Spine
Spine - surgery
Tomography, X-Ray Computed - methods
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Zusammenfassung: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.
ISSN:0195-6108
1936-959X
DOI:10.3174/ajnr.A6238