16层螺旋CT冠状动脉钙化积分诊断150例CHD患者钙化程度的价值分析

Value of 16-slice Spiral CT Coronary Calcification Score in the Diagnosis of Calcification Degree of 150 Patients with Coronary Heart Disease

目的探讨16层螺旋CT冠状动脉钙化积分诊断冠心病(CHD)患者钙化程度的价值。方法选取2015年6月至2018年6月期间150例疑为CHD患者作为研究对象,所有患者均行多层螺旋CT造影(CTA)及冠状动脉钙化积分检查。以冠状动脉造影(CAG)作为金标准,评估CTA诊断冠心病的效能,比较CHD患者与非CHD患者间钙化积分、不同检查方法对钙化斑块的检出率。结果①螺旋CT诊断CHD86例、非CHD64例,灵敏度为91.49%、特异度为100.00%、准确率为94.67%、阳性预测值为100.00%、阴性预测值为87.50%;②CHD患者右冠状动脉、左前降支、左回旋支钙化积分及总钙化积分均高于非CHD者(P<0.05);③CTA、CAG对右冠状动脉、左前降支、左回旋支、左主干钙化斑块诊断率对比,差异均无统计学意义(P<0.05)。结论CTA诊断CHD效能良好,钙化积分是评估患者冠状动脉钙化程度的有效指标。

Objective To explore the value of 16-slice spiral computed tomography(CT)coronary calcification score in the diagnosis of calcification degree in patients with coronary heart disease(CHD).Methods A total of 150 patients suspected as CHD which admitted between June 2015 and June 2018 were selected for the study.All patients were given multi-slice spiral CT angiography(CTA)and coronary artery calcification scores examination.Coronary arteriography(CAG)was used as the gold standard to evaluate the efficacy of CTA in the diagnosis of coronary heart disease.The calcification score between CHD patients and non-CHD patients and the detection rate of calcified plaques by different examination methods were compared.Results Spiral CT diagnosis showed there were 86 cases of CHD and 64 cases of non-CHD,and the sensitivity,specificity,accuracy rate,positive predictive value and negative predictive value were 91.49%,100.00%,94.67%,100.00%and 87.50%.The calcification scores of right coronary artery,left anterior descending and left circumflex and the total calcification score in CHD patients were higher than those in non-CHD patients(P<0.05).There were no statistically significant differences in the calcified plaque diagnostic rates of right coronary artery,left anterior descending,left circumflex and left main coronary artery by CTA or CAG(P<0.05).Conclusion CTA has good efficacy in the diagnosis of CHD,and calcification score is an effective indicator for assessing the calcification degree of patients.