冠状动脉钙化对64层螺旋CT诊断冠状动脉狭窄的影响

被引:33
作者
孙昊
高明明
马展鸿
张镭
杨新春
迟永辉
薛永利
巫琳
王彦江
机构
[1] 首都医科大学附属北京朝阳医院心内科
[2] 首都医科大学附属北京朝阳医院放射科
关键词
体层摄影术,X 线计算机; 冠状动脉疾病; 钙质沉着症;
D O I
暂无
中图分类号
R816.2 [心脏血管系];
学科分类号
摘要
目的探讨64层螺旋 CT(MSCT)诊断伴钙化斑块的冠状动脉狭窄的正确性。方法60例患者同期行64层 MSCT 冠状动脉扫描和常规冠状动脉造影(CCA)。用 MSCT 的平扫图像行钙化积分测定,以 CCA 结果为金标准,得出64层 MSCT 诊断有意义病变(冠状动脉狭窄率≥50%)的正确性,并分析钙化对诊断正确性的影响。结果分析797个可以诊断的冠状动脉节段,得出 MSCT 诊断的敏感性为96%(174/182),特异性为98%(601/615),阳性预测值为93%(174/188),阴性预测值为99%(601/609)。对于钙化积分≥100分(Agatston 评分)的冠状动脉节段,MSCT 诊断的特异性为63%(12/19),阳性预测值为81%(30/37)。结论对于冠状动脉无钙化或者轻度钙化者,64层MSCT 可作为诊断冠心病的可靠手段应用于临床。对于严重钙化者,其诊断的特异性和阳性预测值明显下降。
引用
收藏
页码:1023 / 1027
页数:5
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