320排CT冠脉成像与冠脉造影临床比较

目的 探讨320排CT冠脉成像与冠脉造影对冠心病诊断的比较.方法 对80例确诊或疑似冠心病患者行多层CT成像(MDCT)检查后进行冠状动脉造影检查,观察两种检查方法敏感度、特异度、阳性预测值与阴性预测值及分级诊断有无差异.结果 以冠脉造影检查为金标准,320排CT诊断冠状动脉狭窄≥50％的总体敏感度、特异度、阳性预测值与阴性预测值分别为77.2％、81.1％、62.3％和89.8％,二者分级诊断具有中度至高度一致性.结论 320排CT冠脉成像可对冠状动脉疾病作初步评估,作为冠心病的一种无创筛查手段具有很高的临床应用价值.

Comparison of 320-slice multidetector computed tomography coronary angiography and coronary angiography in diagnosis of coronary heart disease

Objective To compare the diagnostic performance of 320-slice multidetector computed tomography(MDCT) with coronary angiography(CTA).Methods A total of 80 patients who were diagnosed or suspected coronary artery disease were included in the study.All patients underwent invasive coronary angiography(CAG) after 320-slice MDCT examination.Compare two methods with the sensitivity,specificity,positive & negative predictive values and grading diagnosis.Results According to the CAG gold standard,the sensitivity,specificity,positive & negative predictive values by 320-slice MDCT were 77.2%,81.1%,62.3% and 89.8%,two methods of grading diagnosis has a moderate to high consistency.Conclusion 320-slice MDCT can be an initial assessment of coronary artery disease.It is very useful in clinical application of coronary heart disease diagnosis.