Dual-Energy Computed Tomography Applications in Neurointervention

J Comput Assist Tomogr. Nov/Dec 2018;42(6):831-839. doi: 10.1097/RCT.0000000000000779.


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.

Publication types

  • Review

MeSH terms

  • Brain Diseases / diagnostic imaging
  • Brain Diseases / surgery
  • Contrast Media
  • Humans
  • Neuroimaging / methods*
  • Radiographic Image Interpretation, Computer-Assisted
  • Radiography, Dual-Energy Scanned Projection / methods*
  • Spinal Diseases / diagnostic imaging
  • Spinal Diseases / surgery
  • Tomography, X-Ray Computed / methods*


  • Contrast Media