段会仙,曹晶茗,韩丹,刘中梅,肖践明,韩明华,郭涛,李安,张云红,王震

• 1:昆明医学院第一附属医院心内科

摘要(Abstract)：

目的比较血管内超声(intravascular ultrasound,IVUS)与双源CT(dual-source computedtomography,DSCT)对冠状动脉粥样硬化斑块定性、定量分析的准确性。方法入选21例冠心病患者,以美国心脏协会冠状动脉13分段法,每个节段均判断斑块的有无及斑块性质,血管狭窄程度,测量定量指标。以IVUS为标准评估DSCT对冠状动脉粥样硬化病变诊断的价值。结果与IVUS相比,21例患者的28支血管,DSCT对所有部位狭窄程度<50%、50%～75%、>75%的病变的检测的敏感性分别为79.2%(38/48)、89.5%(34/38)、100%(16/16)。以节段中斑块为基础,DSCT对病变节段中所有斑块检测的敏感性、特异性、阳性预测值、阴性预测值分别为96.0%(48/50)、86.5%(45/52)、87.3%(48/55)、95.7%(45/47)。DSCT检测非钙化斑块、钙化斑块的敏感性分别为91.9%(34/37)、92.3%(12/13),特异性分别为92.3%(12/13)、97.1%(34/35)。结论 DSCT可以准确诊断冠状动脉近中段中重度狭窄病变,具有较高的敏感性和阴性预测值;DSCT定量测量与IVUS结果相关性好,且可依据CT值的不同判断斑块的性质;DSCT区分非钙化斑块及在斑块的准确测量方面的可靠性有一定限制。

关键词(KeyWords)： 粥样硬化斑块;冠状血管;超声检查,介入性;体层摄影术,螺旋计算机

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 段会仙,曹晶茗,韩丹,刘中梅,肖践明,韩明华,郭涛,李安,张云红,王震

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