title: Correlation between computed tomographic and magnetic resonance imaging findings of parenchymal lung diseases.
abstract: Computed tomography (CT) is considered to be the gold standard method for the assessment of morphological changes in the pulmonary parenchyma. Although its spatial resolution is lower than that of CT, MRI offers the advantage of characterizing different aspects of tissue based on the degree of contrast on T1-weighted image (WI) and T2-WI. In this article, we describe and correlate the MRI and CT features of several common patterns of parenchymal lung disease (air trapping, atelectasis, bronchiectasis, cavitation, consolidation, emphysema, ground-glass opacities, halo sign, interlobular septal thickening, masses, mycetoma, nodules, progressive massive fibrosis, reverse halo sign and tree-in-bud pattern). MRI may be an alternative modality for the collection of morphological and functional information useful for the management of parenchymal lung disease, which would help reduce the number of chest CT scans and radiation exposure required in patients with a variety of conditions.
authors.affiliation: Department of Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: Miriam Menna
authors.initials: MM
authors.lastname: Barreto
authors.forename: Patricia Piazza
authors.initials: PP
authors.lastname: Rafful
authors.forename: Rosana Souza
authors.initials: RS
authors.lastname: Rodrigues
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
authors.forename: Bruno
authors.initials: B
authors.lastname: Hochhegger
authors.forename: Arthur Soares
authors.initials: AS
authors.lastname: Souza
authors.forename: Marcos Duarte
authors.initials: MD
authors.lastname: Guimarães
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008168:Lung / Q000000981:diagnostic imaging* / Q000473:pathology*; D017563:Lung Diseases, Interstitial / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D013223:Statistics as Topic; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: Computed tomography; Imaging; Lung diseases; Magnetic resonance