128层螺旋CT冠状动脉成像对冠心病的诊断价值

摘要

目的：探讨128层螺旋CT冠状动脉成像在诊断冠心病中的应用价值。方法选择40例临床可疑的冠心病患者及5例冠状动脉支架术后患者，均对其行128层螺旋CT冠状动脉成像，并与冠状动脉造影结果进行对比。结果以冠状动脉造影为金标准，128层螺旋CT冠状动脉成像诊断冠状动脉狭窄的敏感性为89.3%，特异性为97%，阳性预测值为86.2%，阴性预测值为97.7%。结论128层螺旋CT冠状动脉成像作为一种具有非创伤性、安全性的检查方法，在诊断冠状动脉狭窄、显示粥样硬化斑块、冠脉支架术后患者的复查等方面有一定的临床价值，可作为冠心病高危人群的一种无创筛查手段，并可用于冠脉支架术后随访。%Objective To evaluate the effectiveness of application of 128-slice spiral CTCA (Computerized Tomography Coronary Angiography) in diagnosis of CHD (Coronary Heart Disease). Methods Forty cases of suspected CHD patients and 5 cases with a previously implanted coronary stent were selected and scanned by 128-slice spiral CTCA so as to compare its imaging results with conventional CAG (Coronary Angiography). Results With CAG as the gold standard, the sensitivity, speciifcity, PPV and NPV (Positive and Negative Predictive Value) of 128-slice spiral CTCA were 89.3%, 97%, 86.2%and 97.7% respectively in diagnosis of coronary artery stenosis. Conclusion The 128-slice spiral CTCA demonstrated its excellent clinical effectiveness in diagnosing coronary artery stenosis, revealing coronary atherosclerotic plaques and re-examining patients with a previously implanted coronary stent, which can be used as a noninvasive and safe screening method for people at high risk of developing CHD and also as a follow-up method for patients with a previously implanted coronary stent.