Applications of Dual-Energy Computed Tomography for Artifact

Neuroimaging Clin. N. Am. · Aug 2017

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

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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- Eric Liao and Ashok Srinivasan.
- Division of Neuroradiology, Department of Radiology, University of Michigan Health System, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA.
- Neuroimaging Clin. N. Am. 2017 Aug 1; 27 (3): 489-497.
AbstractConventional 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.Copyright © 2017 Elsevier Inc. All rights reserved.

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

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