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窗技术及CT值测量评估冠状动脉支架狭窄的价值 被引量:2

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摘要 目的探讨窗技术及CT值测量诊断冠状动脉支架狭窄(ISR)的临床价值。方法对21例冠状动脉支架置入的患者(共29枚)行冠状动脉造影(CAG)及CT血管造影(CTA)。采用大窗宽、窗位(2 500/900 HU),比较通畅组及狭窄组支架近端、腔内及远端CT值的差异。结果29枚支架CTA诊断通畅20枚,狭窄9枚,CAG显示通畅21枚,狭窄为8枚,两者比较,CTA诊断腔内狭窄的敏感性为100%,特异性为95.2%,阳性预测值为88.9%,阴性预测值为100%。通畅组与狭窄组支架腔内及远端的CT值有统计学差异(P<0.05);支架近端管腔的CT值无统计学差异(P=0.35)。结论 CTA是评价冠状动脉支架通畅性的有效方法,大窗宽、窗位的应用及CT值测量对PCI术后的再狭窄判断有很大的应用价值。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2014年第16期4541-4542,共2页 Chinese Journal of Gerontology
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参考文献6

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