title: Thoracic applications of dual energy.
abstract: Recent technological advances in multidetector computed tomography (CT) have led to the introduction of dual-source CT, which allows acquisition of CT data at the same energy or at 2 distinct tube voltage settings during a single acquisition. The advantage of the former is improvement of temporal resolution, whereas the latter offers new options for CT imaging, allowing tissue characterization and functional analysis with morphologic evaluation. The most investigated application has been iodine mapping at pulmonary CT angiography. The material decomposition achievable opens up new options for recognizing substances poorly characterized by single-energy CT. Although it is too early to draw definitive conclusions on dual-energy CT applications, this article reviews the results already reported with the first generation of dual-source CT systems.
authors.affiliation: Department of Thoracic Imaging, Hospital Calmette, University Lille Nord de France, Lille, France. mremy-jardin@chru-lille.fr
authors.forename: Martine
authors.initials: M
authors.lastname: Remy-Jardin
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Faivre
authors.forename: Francois
authors.initials: F
authors.lastname: Pontana
authors.forename: Anne-Lise
authors.initials: AL
authors.lastname: Hachulla
authors.forename: Nunzia
authors.initials: N
authors.lastname: Tacelli
authors.forename: Teresa
authors.initials: T
authors.lastname: Santangelo
authors.forename: Jacques
authors.initials: J
authors.lastname: Remy
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008168:Lung / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging; D013902:Radiography, Thoracic / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*