title: [Ultra-low dose chest CT: The end of chest radiograph?].
abstract: Ultra-low dose chest CT (ULD-CT) is acquired at a radiation dose lowered to that of a PA and lateral chest X-ray. Its image quality is degraded, yet remains diagnostic in many clinical indications. Technological improvements, with iterative reconstruction at the foreground, allowed a strong increase in the image quality obtained with this examination, which is achievable on most recent (<5 years) scanner. Established clinical indications of ULD-CT are increasing, and its non-inferiority compared to the reference "full dose" chest CT are currently demonstrated for the detection of solid nodules, for asbestos-related pleural diseases screening and for the monitoring of infectious pneumonia. Its current limitations are the obese patients (BMI>35) and the interstitial pneumonia, situations in which their performances are insufficient.
authors.affiliation: Hôpitaux universitaires de Strasbourg, Nouvel hôpital civil, service de radiologie, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: Claire
authors.initials: C
authors.lastname: Ludes
authors.affiliation: Centre hospitalier de Haguenau, service de radiologie, 64, avenue du Professeur-Leriche, 67500 Haguenau, France.
authors.forename: Marysa
authors.initials: M
authors.lastname: Schaal
authors.affiliation: Hôpitaux universitaires de Strasbourg, Nouvel hôpital civil, service de radiologie, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: Aissam
authors.initials: A
authors.lastname: Labani
authors.affiliation: Hôpitaux universitaires de Strasbourg, Nouvel hôpital civil, service de radiologie, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: Mi-Young
authors.initials: MY
authors.lastname: Jeung
authors.affiliation: Hôpitaux universitaires de Strasbourg, Nouvel hôpital civil, service de radiologie, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: Catherine
authors.initials: C
authors.lastname: Roy
authors.affiliation: Hôpitaux universitaires de Strasbourg, Nouvel hôpital civil, service de radiologie, 1, place de l'Hôpital, 67000 Strasbourg, France; Université de Strasbourg/CNRS, laboratoire iCube, UMR 7357, 67400 Illkirch, France. Electronic address: mickael.ohana@gmail.com.
authors.forename: Mickaël
authors.initials: M
authors.lastname: Ohana
mesh_terms: D001195:Asbestosis / Q000000981:diagnostic imaging; D003287:Contrast Media; D004867:Equipment Design; D005602:France; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D061705:Image-Guided Biopsy; D008168:Lung / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008482:Mediastinum / Q000000981:diagnostic imaging; D009367:Neoplasm Staging / Q000379:methods; D009765:Obesity / Q000150:complications; D010994:Pleura / Q000000981:diagnostic imaging; D010997:Pleural Neoplasms / Q000000981:diagnostic imaging; D011634:Public Health / Q000331:legislation & jurisprudence; D011829:Radiation Dosage; D000069079:Radiation Exposure; D013902:Radiography, Thoracic / Q000295:instrumentation / Q000379:methods / Q000639:trends*; D014057:Tomography, X-Ray Computed / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*
chemical_list: D003287:Contrast Media