European Radiology

, 19:13

Dual energy CT: preliminary observations and potential clinical applications in the abdomen

Authors

    • Department of Clinical RadiologyUniversity of Munich – Grosshadern Campus
    • Department of RadiologyNew York University Medical Center
    • Department of Clinical RadiologyUniversity of Munich – Grosshadern Hospitals
  • Thorsten R. C. Johnson
    • Department of Clinical RadiologyUniversity of Munich – Grosshadern Campus
  • Hersh Chandarana
    • Department of RadiologyNew York University Medical Center
  • Michael Macari
    • Department of RadiologyNew York University Medical Center
Computer Tomography

DOI: 10.1007/s00330-008-1122-7

Cite this article as:
Graser, A., Johnson, T.R.C., Chandarana, H. et al. Eur Radiol (2009) 19: 13. doi:10.1007/s00330-008-1122-7

Abstract

Dual energy CT (DECT) is a new technique that allows differentiation of materials and tissues based on CT density values derived from two synchronous CT acquisitions at different tube potentials. With the introduction of a new dual source CT system, this technique can now be used routinely in abdominal imaging. Potential clinical applications include evaluation of renal masses, liver lesions, urinary calculi, small bowel, pancreas, and adrenal glands. In CT angiography of abdominal aortic aneurysms, dual energy CT techniques can be used to remove bones from the datasets, and virtual unenhanced images allow differentiation of contrast agent from calcifying thrombus in patients with endovascular stents. This review describes potential applications, practical guidelines, and limitations of dual energy CT in the abdomen.

Keywords

Computed tomographyAbdominal imagingDual energy CT

Copyright information

© European Society of Radiology 2008