Reliability of the proposed international classification of high-resolution computed tomography for occupational and environmental respiratory diseases.
J Occup Health
; 51(3): 210-22, 2009.
Article
en En
| MEDLINE
| ID: mdl-19372629
ABSTRACT
PURPOSE:
We have developed a classification of high-resolution computed tomography (HRCT) images for screening, surveillance and epidemiological studies of respiratory diseases caused by occupational and environmental factors. The proposed classification consists of three parts a guideline explaining the elements of the classification scheme, a reading sheet, and reference films to aid in assessing thin-section CT films. We assessed the reliability of the proposed classification system by blinded, independent trial reading. MATERIALS ANDMETHODS:
Seven independent radiologists and pulmonologists performed a trial reading to measure the reliability of the classification system using HRCT films from 27 pneumoconiosis patients and 7 normal controls.RESULTS:
The agreement was moderate to good for rounded opacities (weighted kappa=0.68 and 0.64), irregular opacities (0.59, 0.48), honeycombing (0.65, 0.47), emphysema (0.76, 0.62) and large opacities (0.48, 0.52). Ground glass opacities (0.16, 0.20) showed poor to fair agreement. Intra-reader agreement of each of the seven readers was moderate to good (mean weighted kappa=0.52-0.80) for parenchymal findings, but the agreement was relatively low (mean weighted kappa=0.52) for ground glass opacities.CONCLUSION:
The proposed classification is able to describe early dust-related fibrotic changes and provide a semi-quantitative description of the HRCT features of major fibrotic changes in the parenchyma and pleura. Reliability, as measured by inter-reader agreement, was satisfactory.
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Banco de datos:
MEDLINE
Asunto principal:
Tomografía Computarizada por Rayos X
/
Enfermedades Pulmonares
/
Enfermedades Profesionales
Tipo de estudio:
Evaluation_studies
/
Observational_studies
Límite:
Humans
Idioma:
En
Año:
2009
Tipo del documento:
Article