双源CT双能减影法评估冠心病患者管腔狭窄程度的临床价值  

Clinical Value of Dual Energy Angiography with Dual-Source CT in the Degree of Lumen Stenosis in Patients with Coronary Heart Disease

作　　者：缪慧 王晶晶 范恒亮 MIAO Hui;WANG Jing-jing;FAN Heng-liang(Department of Imaging,Hai'an People's Hospital of Nantong University,Hai'an 226600,Jiangsu Province,China)

机构地区：[1]南通大学附属海安人民医院影像科,江苏海安226600

出　　处：《中国CT和MRI杂志》2022年第10期55-56,共2页Chinese Journal of CT and MRI

摘　　要：目的探究双源CT双能减影法评估冠心病患者管腔狭窄程度的临床价值。方法选取2015年7月至2019年5月我院心内科收治的150例疑似冠心病患者进行研究。患者均进行双源CT双能减影法扫描,评估冠心病管腔狭窄程度。结果双源CT诊断左主干狭窄15.11%(21/139),左前降支狭窄33.09%(46/139),左回旋支狭窄23.74%(33/139),右冠状动脉狭窄28.06%(39/139)。双源CT检查轻度狭窄率47.48%(66/139)、中度狭窄率21.58%(30/139)、重度狭窄率25.90%(36/139)、闭塞率5.04%(7/139);冠脉造影检查轻度狭窄率40.29%(56/139)、中度狭窄率23.02%(32/139)、重度狭窄率29.50%(41/139)、闭塞率7.19%(10/139),两组检查方式比较无显著差异(P>0.05)。双源CT诊断管腔狭窄灵敏度(98.56)、特异度(72.72)、阳性预测值(97.86)、阴性预测值(80.00)、准确率(96.67%),与冠脉造影诊断一致性(Kappa=0.744)。结论双源CT双能减影法评估冠心病患者管腔狭窄程度准确性较高,与冠脉造影具有较好的一致性,为患者病情诊断提供有效依据。Objective To explore the clinical value of dual-energy subtraction angiography withdual-source CT in the degree of luminal stenosis in patients with coronary heart disease.Methods Between July 2015 and May 2019,150 patients with suspected coronary heart disease admitted to our Department of Cardiologywere enrolled for dual-energy subtraction angiography withdual-source CT scanning,assessing the degree of coronary artery stenosis.Results Dual-source CT diagnosis of left main stenosis was 15.11%(21/139),left anterior descending stenosis 33.09%(46/139),left circumflex branch stenosis 23.74%(33/139),right coronary artery stenosis 28.06%(39/139).The rate of dual-source CT examination in mild stenosis rate was 47.48%(66/139),moderate stenosis 21.58%(30/139),severe stenosis rate 25.90%(36/139),occlusion rate 5.04%(7/139).The rate of coronary angiography examination for mild stenosis rate was 40.29%(56/139),moderate stenosis 23.02%(32/139),severe stenosis rate 29.50%(41/139),occlusion rate 7.19%(10/139).There was no significant difference in those two inspection methods(P>0.05).The sensitivity(98.56),specificity(72.72),positive predictive value(97.86),negative predictive value(80.00)and accuracy(96.67%)of luminal stenosis by dual-source CT diagnosis were consistent with coronary angiography diagnosis(Kappa=0.744,P<0.001).Conclusion The dual-energy subtraction angiography withdual-source CT has highaccuracy in evaluating the degree of luminal stenosis in patients with coronary heart disease,consistency with coronary angiography,which provides evidences for the diagnosis of patients'condition.

关 键 词：双源CT 冠心病 管腔狭窄程度 临床价值 

分 类 号：R445.3[医药卫生—影像医学与核医学]