Applications of Dual-Energy Computed Tomography for Artifact Reduction in the Head, Neck, and Spine

Publication date: Available online 4 June 2017
Source:Neuroimaging Clinics of North America
Author(s): Eric Liao, Ashok Srinivasan

Teaser

Conventional computed tomography (CT) uses a polychromatic energy beam to offer superb anatomic detail of the head and spine. However, technical challenges remain that can degrade the diagnostic image quality of these examinations. Dual-energy CT analyzes the changes in attenuation of soft tissues at different energy levels, from which different reconstructions can be made to yield the optimal contrast-to-noise ratio, reduce beam-hardening artifact, or evaluate tissue composition. In this article, selective applications of the dual energy CT technique are discussed, highlighting a powerful tool in the diagnostic CT evaluation of the head, neck, and spine.


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