Lung perfusion scanning in coal workers pneumoconiosis.

Details

• Personal Author:
  Chang CHJ ; Lapp, N. Leroy ; Seaton A
• Description:
  Perfusion lung scans were used to detect avascular areas in the lungs of coal miners. Thirty seven coal miners, 14 with complicated pneumoconiosis and 21 with simple pneumoconiosis, were intravenously injected with a suspension of aggregated albumin-131-iodide. Three photoscans, one each in the anteroposterior, right, and left lateral positions, were obtained and examined for abnormalities by two observers. The scans were compared to standard chest radiographs of each subject. In all 14 subjects with complicated pneumoconiosis, conglomerate masses in the chest films were also detected as avascular zones in the scans. Bullae and compensatory emphysema, common in this group, were easier to detect in the scans than in the radiographs. In only two subjects with simple pneumoconiosis was there a scan abnormality explicable on the basis of some other condition: one subject had very early conglomeration; the other had a heavy nodular infiltrate. The authors conclude that the vascular bed of the lung is normal in most patients with simple pneumoconiosis and becomes abnormal in the presence of conglomeration and bullous disease. The interpretation of avascular areas on the scan is greatly assisted by a combined clinical, physiologic, and radiographic approach. [Description provided by NIOSH]
• Subjects:
  Clinical Laboratory Techniques Diagnosis Lung Lung Diseases Occupational Health Radiography Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Clinical-diagnosis Clinical-symptoms Clinical-techniques Diagnostic-techniques Diagnostic-tests Lung-disorders Occupational-respiratory-disease Pulmonary-disorders Pulmonary-system-disorders Radiographic-analysis Respiratory-system-disorders

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• ISSN:
  0003-0805
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  ALFORD - Appalachian Laboratory for Occupational Respiratory Disease
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  338-348
• Volume:
  103
• Issue:
  3
• NIOSHTIC Number:
  nn:00127687
• Citation:
  Am Rev Respir Dis 1971 Mar; 103(3):338-348
• Federal Fiscal Year:
  1971
• Peer Reviewed:
  True
• Source Full Name:
  American Review of Respiratory Disease
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d5e0a9d556a8bf4098e029771c8e61eda5bc1ca636c2717235e2ff1ee8863b3b3adfc91930e505c935353bdfbbd4212631ab11ee20f5cfb7ad2258bca2796567
• Download URL:
  https://stacks.cdc.gov/view/cdc/184599/cdc_184599_DS1.pdf
• File Type:
  [PDF - 795.18 KB ]