64层螺旋CT在评价冠状动脉支架通畅性中的临床应用价值

目的：研究64层螺旋CT（MSCT）评价冠状动脉支架通畅性的临床应用价值。方法：使用MSCT对52例患者的76个支架进行评价,并以常规冠状动脉造影作为＂金标准＂进行对照。结果：使用MSCT时,平均只有40%的支架内腔能被显示,另有4个支架内腔不能用于狭窄评价。MSCT显示,57个支架通畅,与常规冠状动脉造影相符合者55个;14支架再狭窄和1个支架闭塞,均得到常规冠状动脉造影证实。结论：虽然MSCT只能显示部分支架管腔,但在评价支架通畅性方面能提供有用信息,可用于支架术后患者的随访。

Clinical value of assessment stent patency using multislice computed tomography

Objective：To study the clinical value of assessment stent patency using MSCT.Methods：76 stents in 52 patients were evaluated by MSCT,and compared with conventional angiography as the standard of reference.Results：Using MSCT on average,40% of the stent lumen diameter was visible.Lumen visibility was not sufficient for stenosis evalu tion in 4 stents.MSCT showed 57 stents without in-stent restenosis,55 stents accorded with conventional angiography;MSCT showed 14 stents with in-stent restenosis,1 stents with occlusion and conventional angiography proofs stents occlu sions.Conclusion：Although the stent lumen may be partly visualized,MSCT might provide valuable information for stent patency,it can be used for follow-up of patients after stenting.