摘要
支气管动脉造影术对于各种原因所致的危及生命的大咯血。在栓塞前定位是必不可少的。对肺癌的灌注化疗前寻觅靶血管是极其重要的步骤,由于其起源有很大变异。大约70%起源于胸段降主动脉。在T_5颅侧与T_6尾侧边缘之间。几乎20%有起源上变异,起源于其它血管;(1)锁骨下动脉。(2)内乳动脉。(3)心包膈动脉。(4)无名动脉。(5)甲状颈干。(6)膈下动脉。(7)腹主动脉。枝气管动脉多者3～4支。少者1枝,与肋间动脉共干者多与脊髓前动脉沟通,是栓塞或造影后脊神经损害的重要因素。最后简要地提出了并发症的预防措施。
Bronchial arterio-angiography is a necessary procedure for diagnosis of the life-threatening massive hemottysis produced by different causes before the embolotherapy It is also very important step for search of the target vessel. The origin of the bronchial arteries is quite variable. Approximately 70% arise from the descending thoracic aorta between the cranial margin of T5 and the caudal margin of T6. Up to 20% have an aberrant origin from various other vessels. The remaining 10% originate from the anterior surface of the aortic arch or from the remaining portions of the descending thoracic aorta.Most common forms of aberrant origin of the bronchial arteries: (1)Subclavian, (2)internal thoracic, (3)pericardiacophrenic,(4)innominate, (5)thyrocervical trunk, (6)inferiorphrenic and(7)abdominal aorta.
