High-resolution computed tomography (HRCT) scans have been advocated as providing greater sensitivity in detecting parenchymal opacities in asbestos-exposed individuals, especially in the presence of pleural fibrosis, and having excellent inter-and intraobserver reader interpretation.
We compared the 1980 International Labor Organization (ILO) International Classification of the Radiographs of the Pneumoconioses for asbestosis with the high-resolution CT scan using a grid scoring system to better differentiate normal versus abnormal in the ILO boundary 0/1 to 1/0 chest roentgenograph.
We studied 37 asbestos-exposed individuals using the ILO classification, HRCT grid scores, respiratory symptom questionnaires, pulmonary function tests, and bronchoalveolar lavage.
We used Pearson correlation coefficients to evaluate the linear relationship between outcome variables and each roentgenographic method.
The normal HRCT scan proved to be an excellent predictor of « normality, » with pulmonary function values close to 100% for forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), total lung capacity (TLC), and carbon monoxide diffusing capacity (DLCO) and no increase in BAL inflammatory cells.
Concordant HRCT/ILO abnormalities were associated with reduced FEV1/FVC ratio, reduced diffusing capacity, and alveolitis consistent with a definition of asbestosis.
In our study, the ILO classification and HRCT grid scores were both excellent modalities for...
Mots-clés Pascal : Asbestose, Diagnostic, Radiographie RX, Tomodensitométrie, Haute résolution, Technique, Exploration, Etude comparative, Exposition professionnelle, Médecine travail, Homme, Fibrose, Poumon, Appareil respiratoire pathologie, Pneumoconiose, Maladie professionnelle, Poumon pathologie, Radiodiagnostic
Mots-clés Pascal anglais : Asbestosis, Diagnosis, X ray radiography, Computerized axial tomography, High resolution, Technique, Exploration, Comparative study, Occupational exposure, Occupational medicine, Human, Fibrosis, Lung, Respiratory disease, Pneumoconiosis, Occupational disease, Lung disease, Radiodiagnosis
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Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0122947
Code Inist : 002B03L03. Création : 199608.