冠状动脉钙化的普通螺旋CT检查

The application value of ordinary helical CT for screening of coronary artery calcium

目的评价普通螺旋CT筛查冠状动脉钙化的应用价值。方法选择648例患者行常规胸部螺旋CT扫描．观察冠状动脉钙化等循环系统疾病的情况。其中临床诊断冠心病者648例。男性331例，女性317例，年龄40～96岁。结臬男性和女性分别检出冠状动脉钙化为95例（28．07％）和51例（16．08％），冠心病组平均钙化分数360．2±52．1．无冠心病组平均钙化分数为103．6±19．8，差异有显著性。钙化以左前降支发病率最高，其次为左主干、回旋支及右冠状动脉。结论普通螺旋CT检查冠状动脉钙化简便易行，无创伤．具有较高的敏感性和特异性。

Objective To study the value of ordinary helical CT for screening of coronary artery calcium. Methods 648 patients including 331 men and 317 women were studied ranging from 40-96 years. All patients had routine thoracic helical CT scan. Results The men and women of coronary artery calcium were 95（28.07%） and 51（16.08%）respectively. Significant difference （P〈0. 05） in the mean coronary artery calcification score existed between coronary heart disease group（360.2±52. 1） and asymptomatic group （103.6 ± 19.8）. Peak incidence rate of calcification was LAD,and others were in the order of LMA, LCA and RCA. Conclusion Ordinary helical CT is a promising procedure for detecting coronary arterial disease,since it has a high sensitivity and specificity,and is noninvasive and easy to conduct.