Objective:To observe the curative effect and complication of o number line segment embolization in bronchialartery and to study the safety and curative effect of bronchial artery embolization with o number line segment in the treatment for massive hempotysis.Methods:A total of 35 patients with massive hemoptysis(30 males

5 females) were performed selective bronchial artery embolization.All cases were embolized with o number line segments.All patients had been followed up for one to eighteen months

with the second embolization if relapsed.Results:Immediate and complete control was achieved in 34 cases(97.1%)

relapse occurred in 4 cases(11.4%)

and no patient had spinal cord injury.Conclusion:Bronchial artery embolization with 0 number line segment can significantly reduce the recurrence

and is the safe and effective treatment for hemoptysis.