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Dual-Energy Computed Tomography Applications in Neurointervention

Wolman, Dylan N. MD*; Patel, Bhavik P. MD, MBA; Wintermark, Max MD; Heit, Jeremy J. MD, PhD

Journal of Computer Assisted Tomography: November/December 2018 - Volume 42 - Issue 6 - p 831–839
doi: 10.1097/RCT.0000000000000779
Neuroradiology Applications of Dual Energy CT

Dual-energy computed tomography (CT) combines the high spatial resolution of standard CT with the ability to improve contrast resolution, reduce artifact, and separate materials of different atomic weights and energy-based attenuation through postprocessing. We review the underlying physical principles and applications of dual-energy CT within the context of patients undergoing preprocedural and postprocedural evaluation for neurointerventional therapies. The broad imaging categories of cerebral ischemia and hemorrhage, head and neck angiography, and the spine are reviewed.

From the *Department of Radiology,

Department of Radiology, Body Imaging Division, and

Department of Radiology, Neuroimaging and Neurointervention Division, Stanford University School of Medicine, Stanford, CA.

Received for publication May 31, 2018; accepted June 4, 2018.

Correspondence to: Jeremy J. Heit, MD, PhD, 300 Pasteur Drive, Room S-047, Stanford, CA 94305 (e-mail:

B.N. Patel receives research support from and is a consultant for GE Healthcare. No conflicts of interest declared for the remaining authors. No sources of funding to declare.

Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.