Metal artifact reduction techniques in musculoskeletal CT-imaging

doi:10.1016/j.ejrad.2018.08.010

Review

. 2018 Oct:107:60-69.

doi: 10.1016/j.ejrad.2018.08.010. Epub 2018 Aug 12.

Metal artifact reduction techniques in musculoskeletal CT-imaging

R H H Wellenberg¹, E T Hakvoort², C H Slump³, M F Boomsma⁴, M Maas⁵, G J Streekstra⁶

Affiliations

¹ Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands; Department of Radiology, Isala, Zwolle, The Netherlands. Electronic address: r.h.wellenberg@amc.uva.nl.
² Department of Biomedical Engineering and Physics, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands. Electronic address: e.t.hakvoort@gmail.com.
³ MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands. Electronic address: c.h.slump@utwente.nl.
⁴ Department of Radiology, Isala, Zwolle, The Netherlands. Electronic address: m.f.boomsma@isala.nl.
⁵ Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands. Electronic address: m.maas@amc.uva.nl.
⁶ Department of Biomedical Engineering and Physics, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands. Electronic address: g.j.streekstra@amc.uva.nl.

PMID: 30292274
DOI: 10.1016/j.ejrad.2018.08.010

Review

Metal artifact reduction techniques in musculoskeletal CT-imaging

R H H Wellenberg et al. Eur J Radiol. 2018 Oct.

. 2018 Oct:107:60-69.

doi: 10.1016/j.ejrad.2018.08.010. Epub 2018 Aug 12.

Authors

R H H Wellenberg¹, E T Hakvoort², C H Slump³, M F Boomsma⁴, M Maas⁵, G J Streekstra⁶

Affiliations

¹ Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands; Department of Radiology, Isala, Zwolle, The Netherlands. Electronic address: r.h.wellenberg@amc.uva.nl.
² Department of Biomedical Engineering and Physics, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands. Electronic address: e.t.hakvoort@gmail.com.
³ MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands. Electronic address: c.h.slump@utwente.nl.
⁴ Department of Radiology, Isala, Zwolle, The Netherlands. Electronic address: m.f.boomsma@isala.nl.
⁵ Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, location AMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands. Electronic address: m.maas@amc.uva.nl.
⁶ Department of Biomedical Engineering and Physics, Amsterdam University Medical Center, location AMC, Amsterdam, The Netherlands. Electronic address: g.j.streekstra@amc.uva.nl.

PMID: 30292274
DOI: 10.1016/j.ejrad.2018.08.010

Abstract

It is known that metal artifacts can be reduced by modifying standard acquisition and reconstruction, by modifying projection data and/or image data and by using virtual monochromatic imaging extracted from dual-energy CT. In this review we focus on the origin of metal artifacts, technical background of commercially available metal artifact reduction (MAR) algorithms and the value of dual-energy CT and MAR software for different metal hardware in current clinical practice. Virtual monochromatic imaging reduces beam-hardening artifacts, where metal artifact reduction software effectively reduces artifacts caused by extensive photon-starvation. Both techniques have their advantages and disadvantages, and the combination of both techniques is often but not always the best solution regarding metal artifact reduction. Advances in prosthetic imaging are reinforced by advances in prosthetic design. Providing implant specific information prior to scanning is important in order to adjust the metal artifact reduction approach, minimize artifacts and optimize image quality and diagnostic value of CT.

Keywords: Dual-energy CT; Metal artifact reduction software; Metal artifacts; Musculoskeletal CT; Virtual monochromatic imaging.

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Metal artifact reduction techniques in musculoskeletal CT-imaging

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