Does digital chest radiography assess regional ventilation
1994
Summary. Digital radiography of the chest was evaluated for estimation of regional ventilation disturbances. Thirty-three patients with suspected bronchial carcinomas were examined. Objective measurements of regional density changes during breathing correlated significantly with standardized regional lung function tests (133Xe ventilation scintigraphy), but did not permit reliable individual estimations of regional ventilation. About 35% of the density variations could be explained by regional ventilation. Thus, factors other than ventilation, e.g. changes in the geometry of the thorax, have a major impact on the density variation at digital radiography.,
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