title: Applications of dual-energy CT in emergency radiology.
abstract: OBJECTIVE
  Recent technologic advances in MDCT have led to the introduction of dual-energy CT (DECT). The basic principle of DECT is to acquire images at two different energy levels simultaneously and to use the attenuation differences at these different energy levels for deriving additional information, such as virtual monochromatic images, artifact suppression, and material composition of various tissues.
  
  
  CONCLUSIONS
  A variety of image reconstruction and postprocessing techniques are available for better demonstration and characterization of pathologic abnormalities. DECT can provide both anatomic and functional information of different organ systems. This article focuses on the main applications of DECT in emergency radiology.
authors.affiliation: 1 Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Founders Bldg, Rm 210, Boston, MA 02114.
authors.forename: Shima
authors.initials: S
authors.lastname: Aran
authors.forename: Laleh
authors.initials: L
authors.lastname: Daftari Besheli
authors.forename: Laleh Daftari
authors.initials: LD
authors.lastname: Besheli
authors.forename: Musturay
authors.initials: M
authors.lastname: Karcaaltincaba
authors.forename: Rajiv
authors.initials: R
authors.lastname: Gupta
authors.forename: Efren J
authors.initials: EJ
authors.lastname: Flores
authors.forename: Hani H
authors.initials: HH
authors.lastname: Abujudeh
mesh_terms: D003287:Contrast Media; D004635:Emergency Medicine / Q000379:methods*; D006801:Humans; D011379:Prognosis; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods*; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media