Introduction . According to studies on the treatment of emphysema, the absence of CT signs of collateral ventilation correlates with the results of valvular blocking procedure, but there is not any data on the relationship between the signs of collateral ventilation and the results of bronchial valve treatment in destructive forms of pulmonary tuberculosis. Study goals : to study the effect of CT features of collateral ventilation in combination with other factors on the results of valvular bronchial blocking in patients with destructivepulmonary pathology in tuberculosis. Materials and methods . Тhe study is based on the results of evaluation of chest CT data of patients with various pathology of pulmonary tuberculosis before and after valvular blocking procedure. Results . Сorrelations between such characteristics as collateral ventilation, additional factors and valvular treatment effects have been determined, and prognostic models estimating the success of valve therapy have been constructed. Conclusion . Positive pleural integrity symptom is a predictor of lobe volume reduction after bronchial valve treatment. Lobe volume reduction during valve therapy is a prognostic factor for cavity’s closure.