From the Department of Radiology (D.R.W., N.Y.K., B.J.O., A.M.G., A.D.K.), University of Wisconsin, Madison, Wisconsin.
From 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 Am J Neuroradiol. 2019 Nov;40(11):1973-1975. doi: 10.3174/ajnr.A6238. Epub 2019 Oct 3.
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.
金属硬件以束硬化、光子饥饿和条纹的形式作为脊柱 CT 成像中的常见伪影源。已经开发了后处理金属伪影减少技术来减少这些伪影，这已被证明可以改善软组织结构的可视化并提高诊断信心。然而，金属伪影减少重建会引入自己的新伪影，这些伪影可以模拟病理学。
