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

作者：Liao Eric; Srinivasan Ashok^*

来源：Neuroimaging Clinics of North America, 2017, 27(3): 489-+.

DOI：10.1016/j.nic.2017.04.004

• Dual-energy CT
• Beam-hardening artifact reduction
• Virtual monochromatic imaging
• Virtual subtraction imaging

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.

• 出版日期2017-8