分析19例患者闭塞冠状动脉(冠脉)的影象特点和球囊扩张治疗结果.发现16例并存非闭塞冠脉狭窄,其中12例表现为70%以上的重度狭窄.所有闭塞冠脉均有良好的侧支循环,左前降支和右冠脉闭塞均表现为对侧侧支循环,左旋支闭塞者3例为同侧侧支循环,1例为对侧侧支循环.13例闭塞血管经球羹扩张后再通,6例失败,其主要原因为导丝不能通过闭塞部位(5例)和球囊不能跨过闭塞部位(1例). Analysis of 19 patients with occlusion of coronary artery (coronary artery) imaging features and balloon dilation treatment results found in 16 patients with occlusion of non-occluded coronary stenosis, of which 12 cases showed more than 70% of severe stenosis.All of the occluded coronary arteries Good collateral circulation, left anterior descending artery and right coronary artery occlusion showed the contralateral collateral circulation, left anastomosis occlusion in 3 cases of ipsilateral collateral circulation, 1 case of contralateral collateral circulation .13 cases of occlusion of blood vessels Spoon expansion and then through, 6 cases failed, the main reason for the guide wire can not pass the occlusion site (5 cases) and the balloon can not cross the occlusion site (1 case).