title: Relationships (I) of International Classification of High-resolution Computed Tomography for Occupational and Environmental Respiratory Diseases with the ILO International Classification of Radiographs of Pneumoconioses for parenchymal abnormalities.
abstract: The International Classification of High-resolution Computed Tomography (HRCT) for Occupational and Environmental Respiratory Diseases (ICOERD) has been developed for the screening, diagnosis, and epidemiological reporting of respiratory diseases caused by occupational hazards. This study aimed to establish a correlation between readings of HRCT (according to the ICOERD) and those of chest radiography (CXR) pneumoconiotic parenchymal opacities (according to the International Labor Organization Classification/International Classification of Radiographs of Pneumoconioses [ILO/ICRP]). Forty-six patients with and 28 controls without mineral dust exposure underwent posterior-anterior CXR and HRCT. We recorded all subjects' exposure and smoking history. Experts independently read CXRs (using ILO/ICRP). Experts independently assessed HRCT using the ICOERD parenchymal abnormalities grades for well-defined rounded opacities (RO), linear and/or irregular opacities (IR), and emphysema (EM). The correlation between the ICOERD summed grades and ILO/ICRP profusions was evaluated using Spearman's rank-order correlation. Twenty-three patients had small opacities on CXR. HRCT showed that 21 patients had RO; 20 patients, IR opacities; and 23 patients, EM. The correlation between ILO/ICRP profusions and the ICOERD grades was 0.844 for rounded opacities (p<0.01). ICOERD readings from HRCT scans correlated well with previously validated ILO/ICRP criteria. The ICOERD adequately detects pneumoconiotic micronodules and can be used for the interpretation of pneumoconiosis.
authors: Department of Environmental Health, University of Fukui School of Medicine, Japan.
authors: Taro
authors: T
authors: Tamura
authors: Narufumi
authors: N
authors: Suganuma
authors: Kurt G
authors: KG
authors: Hering
authors: Tapio
authors: T
authors: Vehmas
authors: Harumi
authors: H
authors: Itoh
authors: Masanori
authors: M
authors: Akira
authors: Yoshihiro
authors: Y
authors: Takashima
authors: Harukazu
authors: H
authors: Hirano
authors: Yukinori
authors: Y
authors: Kusaka
mesh_terms: D000368:Aged; D001194:Asbestos / Q000009:adverse effects; D016022:Case-Control Studies; D004391:Dust; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects*; D011009:Pneumoconiosis / Q000145:classification / Q000000981:diagnostic imaging; D011859:Radiography; D012140:Respiratory Tract Diseases / Q000145:classification* / Q000000981:diagnostic imaging*; D012822:Silicon Dioxide / Q000009:adverse effects; D014057:Tomography, X-Ray Computed
chemical_list: D004391:Dust; D001194:Asbestos; D012822:Silicon Dioxide