评价双源CT对PCI术后管腔再狭窄的诊断

目的:评价数字减影CT血管成像(DSCTA)诊断经皮冠状动脉介入(PCI)术后管腔再狭窄的准确性,并与血管内超声(IVUS)作对比分析研究,探讨其临床应用前景。方法:收集2009年3月至2011年12月期间,共15例PCI术后复查疑似管腔再狭窄患者的DSCTA、血管造影(CAG)、IVUS的检查资料,以IVUS结果为参照,评价DSCT对冠脉PCI术后管腔再狭窄诊断的准确性。结果:15例患者DSCT、CAG及IVUS分别诊断支架内再狭窄<50%的患者为10例、13例、11例;支架内冠状再狭窄>50%为5例、2例、4例;三者之间比较有一致性(P>0.05)。结论:DSCTA能准确评估PCI术后再狭窄,与IVUS结果有一致性,可作为PCI术后复查的首选方法。

Evaluation about Diagnosis Value of Dual Source CT on Post-PCI Restenosis

Objective To evaluate the accuracy of DSCTA for the diagnosis of restenosis after artery PCI operation,to compare the result by DSCTA with that by IVUS and to explore its clinical application prospective.Methods The data by DSCTA,CAG and IVUS of 15 patients suspected as post-PCI restenosis from Mach 2009 to December 2011 were selected as the subjects.The value of DSCT for the diagnosis of post-PCI restenosis was evaluated with the result by IVUS as the standard.Results The results showed that the positive cases of coronary in-stent restenosis 50% by DSCT,CAG and IVUS were 5/10,2/13,4/11 respectively.There was no significant difference between the three groups（P0.05）.Conclusion DSCTA is able to accurately assess the restenosis after PCI operation,and has the same results with the IVUS.DSCTA can be the preferred method of reexamination for the patients who have received the PCI operation.[Chinese Medical Equipment Journal,2012,33（6）：54-56]