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Metal Artifact Reduction Computed Tomography of Arthroplasty Implants: Effects of Combined Modeled Iterative Reconstruction and Dual-Energy Virtual Monoenergetic Extrapolation at Higher Photon Energies.
Iman Khodarahmi ,
Reham R Haroun ,
Moses Lee
1
,
2 ,
George S K Fung
3 ,
Matthew K Fuld
3 ,
Lew C Schon
1 ,
Elliot K Fishman ,
Jan Fritz
December 2018
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Abstract
The aim of this study was to compare the effects of combined virtual monoenergetic extrapolation (VME) of dual-energy computed tomography data and iterative metal artifact reduction (iMAR) at higher photon energies on low- and high-density metal artifacts and overall image quality of the ankle arthroplasty implants with iMAR, weighted filtered back projection (WFBP), and WFBP-based VME.