title: [What future for chest x-ray against ultra-low-dose computed tomography?]
abstract: Technological improvements, with iterative reconstruction at the foreground, have lowered the radiation dose of a chest CT close to that of a PA and lateral chest x-ray. This ultra-low dose chest CT (ULD-CT) has an image quality that is degraded on purpose, yet remains diagnostic in many clinical indications. Thus, its effectiveness is already validated for the detection and the monitoring of solid parenchymal nodules, for the diagnosis and monitoring of infectious lung diseases and for the screening of pleural lesions secondary to asbestos exposure. Its limitations are the analysis of the mediastinal structures, the severe obesity (BMI>35) and the detection of interstitial lesions. If it can replace the standard chest CT in these indications, all the more in situations where radiation dose is a major problem (young patients, repeated exams, screening), it progressively emerges as a first line alternative for chest radiograph, providing more data at a similar radiation cost.
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France; Laboratoire iCube, UMR 7357, CNRS, université de Strasbourg, 67400 Illkirch, France. Electronic address: mickael.ohana@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Ohana
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: C
authors.initials: C
authors.lastname: Ludes
authors.affiliation: Service de radiologie, centre hospitalier de Haguenau, 64, avenue du Professeur-Leriche, 67500 Haguenau, France.
authors.forename: M
authors.initials: M
authors.lastname: Schaal
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: E
authors.initials: E
authors.lastname: Meyer
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: M-Y
authors.initials: MY
authors.lastname: Jeung
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: A
authors.initials: A
authors.lastname: Labani
authors.affiliation: Service de radiologie, nouvel hôpital civil, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: C
authors.initials: C
authors.lastname: Roy
mesh_terms: D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008403:Mass Screening / Q000379:methods / Q000639:trends*; D011829:Radiation Dosage; D013902:Radiography, Thoracic / Q000379:methods / Q000706:statistics & numerical data / Q000639:trends*; D014057:Tomography, X-Ray Computed / Q000379:methods / Q000706:statistics & numerical data / Q000639:trends*; D014965:X-Rays
keywords: Dépistage; Imagerie thoracique; Irradiation; Lung imaging; Multidetector computed tomography; Radiation dosage; Screening; Tomodensitométrie