多层螺旋CT血管造影在评价冠状动脉粥样硬化性心脏病心肌缺血程度价值分析

目的 分析冠状动脉粥样硬化性心脏病心肌缺血程度应用多层螺旋CT血管造影的评价价值.方法 选取2014年7月至2018年7月就诊于西电集团医院及榆林市第一医院影像科的80例疑似冠心病患者,均行MSCTA检查,以CAG检查为对照,计算MSCTA检查冠脉狭窄的准确性、敏感性、特异性,并比较CAG、MSCTA检出冠脉狭窄程度情...

Value of Multi-slice Spiral CT Angiography in Evaluating Myocardial Ischemia in Coronary Atherosclerotic Heart Disease

Objective To analyze myocardial ischemia in patients with coronary atherosclerotic heart disease by multi-slice spiral CT angiography.Methods 80 patients with suspected co ronary artery disease in our hospital from July 2017 to July 2018 were examined by MSCTA.The accuracy,sensitivity and specificity of MSCTA in detecting coronary artery stenosis were compa red with those of CAG,and the degree of coronary artery stenosis detected by CAG and MSCTA was evaluated.Then we performed the radionuclide MPI examination to calculate the integral difference of myocardial perfusion and the total load score of stenosed coronary artery detected by MSCTA.Results Compared with CAG,MSCTA showed that there were 166 coronary stenosis in 68 suspected patients.The accuracy,sensitivity,specificity,positive predictive value and negative predictive value were 96.68%,97.58%,95.28%,96.99%and 96.19%respectively.There was no statistical difference in the degree of coronary stenosis detected by MSCTA and CAG(P>0.05).MSCTA show that the integral difference of myocardial perfusion and the total load score of mild stenosis group were(0.80±0.60)score,(2.00±1.58)score,which were significantly lower than the moderate stenosis group and severe stenosis group(P<0.05).Conclusion MSCTA can assess not only the degree of coronary artery stenosis,determine the plaque properties of coronary artery stenosis,but also the degree of myocardial ischemia preliminarily in coronary heart disease with high accuracy,sensitivity,specificity and clinical value.