Dual-Energy Derived Virtual Nonenhanced Computed Tomography Imaging: Current Status and Applications

Shmuel Mahgerefteh, Arye Blachar, Shifra Fraifeld, Jacob Sosna*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Radiation exposure is a growing concern, and computed tomography is a main contributor to overall radiation dose in American patients. Dual-energy computed tomography, by allowing virtual nonenhanced (VNE) imaging, may obviate the need for image acquisition during a true nonenhanced phase when multiphase studies are needed, thereby reducing radiation exposure. Various groups have reported on the technical feasibility and clinical applicability of VNE imaging in the kidney, liver, lung, brain, and aorta. VNE is consistently reported to be both feasible and clinically relevant, although both hardware and postprocessing capabilities currently pose various specific challenges. We review the current state of VNE imaging and discuss some challenges to its future application.

Original languageEnglish
Pages (from-to)321-327
Number of pages7
JournalSeminars in Ultrasound, CT and MRI
Volume31
Issue number4
DOIs
StatePublished - Aug 2010
Externally publishedYes

Keywords

  • Dual-energy CT
  • Intravenous iodine
  • Multiphase CT study
  • Virtual nonenhanced

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