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目的探讨多层螺旋CT对冠状动脉狭窄病变的诊断价值。方法选取80例临床诊断为冠心病或可疑冠心病的住院患者,行64层双源螺旋CT冠状动脉成像检查及经皮选择性冠状动脉造影。分别评价冠状动脉狭窄程度,以经皮选择性冠状动脉造影结果作为诊断金标准进行统计学对比分析。结果 64层双源螺旋CT冠状动脉成像诊断冠状动脉狭窄病变的灵敏性73.5%,特异性92.3%,阳性预测值71.7%,阴性预测值93.0%,准确性88.4%。结论 64层双源螺旋CT冠状动脉成像诊断冠状动脉狭窄病变具有无创、经济、灵敏、特异、安全等优点,可以作为无症状心肌缺血冠心病的首选筛查方法。
Objective To investigate the diagnostic value of multislice spiral CT in the diagnosis of coronary artery stenosis. Methods Totally 80 hospitalized patients with clinical diagnosis of coronary heart disease or suspected coronary artery disease were examined with 64-slice dual-source CT coronary angiography and percutaneous coronary angiography. The degree of coronary artery stenosis was evaluated respectively, and the results of percutaneous selective coronary angiography were used as the gold standard of diagnosis for statistical comparative analysis. Results The sensitivity, specificity and accuracy of 64-slice dual-source CT coronary angiography in the diagnosis of coronary artery stenosis were 73.5%, 92.3%, 71.7%, 93.0% and 88.4% respectively. Conclusion 64-slice double helical CT coronary angiography is a non-invasive, economical, sensitive, specific and safe method for the diagnosis of coronary artery stenosis. It can be used as the first screening method for asymptomatic myocardial ischemia in patients with coronary heart disease.