1 The Intrabronchial Valve is used to block bronchial airflow in the most emphysematous areas of lung.

2 Results:CTVB found intrabronchial masses in4cases, bronchial stenosis in6cases which were the same as that found in transverse section CT images.

3 The Intrabronchial ale is used to block bronchial airflow in the most emphysematous areas of lung.

4 Administration approach included intratumoral injection, intrabronchial drop in, intraperitoneal injection, intra-arterial infusion and intravenous drip.

5 Examinations should be carried out to exclude tuberculosis, bronchial carcinoma and intrabronchial foreign body.