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Lung India Official publication of Indian Chest Society  
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Year : 1984  |  Volume : 2  |  Issue : 1  |  Page : 60-63

Studies In Radioaerosol Lung Scanning In Urban Health Survey Subjects

Correspondence Address:
V. B Doshi

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Source of Support: None, Conflict of Interest: None

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As a part of health survey in relation to air pollution, 16 smokers (11 from 'high' and 5 from 'low' zone) were studied with extensive serial lung functions, chest radiography and radioaerosol lung scanning. The clinical diagnosis were chronic bronchitis (COPD) in 9 subjects; but others (4 ‘High’ and 3 ‘Low’), were considered normal. The values of FVC, FEV1 were normal in most of these three groups, but FEV1/FVC% values were lower in subjects from 'high' zone. The functional declines were higher in normals of 'high' zone. Radioaerosol (ventilation) scans (with Technetium99) showed a normal picture in 2 COPD and 3 normal subjects; in 3 COPD and 1 normal subjects the abnormalities were definite. For perfusion scans, 2 COPD and 3 normal subjects showed a normal patterns while definite abnormalities were seen in 1 COPD and 1 normal subjects. Lung scans may pick up abnormalities in normal smokers at an early stage.

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