Strategies to Improve Image Quality on Dual-Energy Computed Tomography

Bhavik N Patel; Daniele Marin

doi:10.1016/j.rcl.2018.03.006

Strategies to Improve Image Quality on Dual-Energy Computed Tomography

Radiol Clin North Am. 2018 Jul;56(4):641-647. doi: 10.1016/j.rcl.2018.03.006. Epub 2018 May 4.

Authors

Bhavik N Patel¹, Daniele Marin²

Affiliations

¹ Division of Abdominal Imaging, Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H1307, Stanford, CA 94305, USA. Electronic address: bhavikp@stanford.edu.
² Division of Abdominal Imaging, Department of Radiology, Duke University, DUMC 3808, Durham, NC 27710, USA.

PMID: 29936952
DOI: 10.1016/j.rcl.2018.03.006

Abstract

Dual-energy computed tomography (DECT) offers several advantages over conventional single-energy CT. These advantages include improved image quality, beam hardening correction, and metal artifact reduction. Additionally, DECT allows derivation of quantitative information through material decomposition analysis. Although newer third-generation rapid-kilovolt switching and dual-source DECT scanners have significantly improved in image quality and workflow compared with initial iterations and early scanners, sources of potential image quality degradation can exist secondary to the inherent capabilities in which the image acquisition occurs.

Keywords: Artifact; Dual-energy CT; Image quality; Metal; Virtual monoenergetic images.

Publication types

Review

MeSH terms

Artifacts*
Humans
Image Processing, Computer-Assisted / methods*
Radiography, Dual-Energy Scanned Projection / methods*
Tomography, X-Ray Computed / methods*