Silicosis in Stone Carvers: Correlation Between HRCT and Standard Radiographs

Details

• Personal Author:
  Antao VC ; Kavakama J ; Pinheiro GA ; Terra-Filho M
• Description:
  Rationale: A high prevalence of silicosis has been described among stone carvers in Brazil. This study was aimed to determine the correlation between two methods of radiological evaluation of silicosis in this population. Methods: Forty-one workers and 9 healthy controls were studied with chest radiographs (CR) and high resolution computed tomography (HRCT). The radiographs were independently interpreted by 3 "A" readers (according to ILO/1980 rules), and 3 radiologists experienced in the evaluation of pneumoconiosis read the HRCTs. All readers were blinded with respect to exposure. The results of each CR and HRCT examination was summarized as the median of 3 readings. A small opacity profusion of 1/0 or greater was considered as silicosis. A systematic protocol was used for grading silicosis on HRCT. Results: All CR and HRCT from the control group were considered normal. Silicosis was identified in 22/41 workers (53.7%) by CR, and in 23/41 workers (56.1%) by HRCT. The inter-reader agreement (generalized kappa) for major profusion categories (0, 1, 2, 3) was k=0.44 by CR and k=0.62 by HRCT (p
• Subjects:
  Lung Lung Diseases Occupational Health Radiation Radiography Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Humans Lung-function Pulmonary-disorders Pulmonary-function Pulmonary-system-disorders Radiographic-analysis Respiratory-system-disorders X-ray-analysis X-ray-diagnosis
• ISSN:
  1073-449X
• Document Type:
  Text
• Genre:
  Abstract or Summary ; Proceedings
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  169
• Issue:
  7
• NIOSHTIC Number:
  nn:20026045
• Citation:
  Am J Respir Crit Care Med 2004 Apr; 169(7)(Abstracts):A46
• Email:
  vfc1@cdc.gov
• Federal Fiscal Year:
  2004
• Peer Reviewed:
  False
• Source Full Name:
  American Journal of Respiratory and Critical Care Medicine
• Supplement:
  Abstracts
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:56e3098e097a9e8d4638baebab44950dda52008efff8cb247749f08163ed5d4cb8456db6c1d8a6d1673a9f970b587304d5b6ab16df06acdd162b5268b1181e3d
• Download URL:
  https://stacks.cdc.gov/view/cdc/197167/cdc_197167_DS1.pdf
• File Type:
  [PDF - 397.32 KB ]