[The x-ray diagnosis of the functional disorder of bronchial patency in chronic bronchitis].

The aim of the study was to investigate functional impairments of bronchial patency in chronic bronchitis. Various up-to-date roentgenological procedures were used. Data on complex clinicoroentgenological examination of 94 patients with chronic bronchitis are presented. Bronchograms and bronchial zonograms reflecting various respiration phases, video recording on magnetic tape with using broncholytics and a new procedure of bronchogram digital processing developed by the authors were used to solve the problems. Classification, frequency, localization and nature of functional impairments of bronchial patency in chronic bronchitis are described. The role of x-ray examination in diagnosis of functional impairment of bronchial patency was shown.