Peering through the glare: using dual-energy CT to overcome the problem of metal artefacts in bone radiology
Imaging of patients with large metal implants remains one of the most difficult endeavours for radiologists. This article reviews the theory of dual-energy CT (DECT) and its ability to reduce metal artefact, thus enhancing the diagnostic value of musculoskeletal imaging. The strengths, weaknesses, and alternative applications of DECT, as well as areas requiring further research, will also be reviewed.
Currently, DECT stands as the frontier for metal artefact reduction in musculoskeletal imaging. DECT requires no additional radiation and provides significantly enhanced image acquisition. When considered along with its other capabilities, DECT is a promising new tool for musculoskeletal and trauma radiologists.
Authors: Coupal TM, Mallinson PI, McLaughlin P, Nicolaou S, Munk PL, Ouellette H.
Full text: Skeletal Radiol. 2014 May