基于双源CT下CCTA斑块特征分析对冠状动脉狭窄致心绞痛的诊断价值  

Diagnostic Value of CCTA Plaque Feature Analysis Based on Dual Source CT for Angina Pectoris Caused by Coronary Artery Stenosis

作　　者：赵细辉 周瑶[1] 王骋[1] ZHAO Xihui;ZHOU Yao;WANG Cheng(Department of Radiology,Guizhou Provincial People's Hospital,Guizhou 550002,China)

机构地区：[1]贵州省人民医院医学影像科,贵州550002

出　　处：《影像技术》2025年第2期54-57,共4页Image Technology

摘　　要：目的:分析双源CT扫描技术下冠状动脉CT血管造影(coronary computed tomography angiography,CCTA)斑块特征分析(斑块面积、斑块负荷)对冠状动脉狭窄致心绞痛患者的诊断价值。方法:将我院近年来(2022年1月-2023年6月)收治的冠状动脉狭窄致心绞痛患者作为本次观察对象共50例,按照是否缺血分为缺血组(29例)与非缺血组(21例),所有患者均进行CCTA检查,以血管造影为检查金标准,采用Siemens后处理工作站分析CT对两组患者血管狭窄程度(最小管径面积狭窄度、最小管径直径狭窄度)检出情况、斑块特征(斑块面积、斑块负荷、钙化积分、斑块最大厚度)。结果:CCTA检查检出缺血组患者血管狭窄程度均高于非缺血组,差异有统计学意义(P<0.05),检出结果与金标准比较差异无统计学意义(P>0.05);CCTA检查检出缺血组患者斑块负荷、斑块面积、钙化积分与斑块最大厚度均非缺血组,差异有统计学意义(P<0.05),检出结果与金标准比较差异无统计学意义(P>0.05)。结论:双源CT扫描技术下CCTA斑块特征分析(斑块面积、斑块负荷)对冠状动脉狭窄所致的心绞痛患者有较高的诊断价值,检出数据与金标准并无显著差异,可为临床早期诊断与心肌缺血损伤的预测提供参考数据,应用价值较高,值得推广。Objective:To analyze the diagnostic value of plaque feature analysis(plaque area,plaque load)in patients with coronary artery stenosis induced angina using dual source CT scanning technology in coronary computed tomography angiography(CCTA).Methods:Fifty patients with angina pectoris caused by coronary artery stenosis admitted to our hospital in recent years(2022.1-2023.6)were selected as the observation subjects.They were divided into an ischemic group(29 cases)and a non ischemic group(21 cases)according to whether they were ischemic or not.All patients underwent CCTA examination,with angiography as the gold standard for examination.Siemens post-processing workstation was used to analyze the CT detection of vascular stenosis degree(minimum diameter area stenosis degree,minimum diameter diameter diameter stenosis degree),plaque characteristics(plaque area,plaque load,calcification score,maximum plaque thickness)in both groups of patients.Results:CCTA examination showed that the degree of vascular stenosis in the ischemic group was higher than that in the non ischemic group,and the difference was statistically significant(P<0.05).There was no statistically significant difference between the detection results and the gold standard(P>0.05);Similarly,the plaque load,plaque area,calcification score,and maximum plaque thickness were significantly higher in the ischemic group compared to the non-ischemic group,and the difference was statistically significant(P<0.05).The detection results showed no statistically significant difference compared to the gold standard(P>0.05).Conclusion:The analysis of CCTA plaque characteristics(plaque area,plaque load)using dual source CT scanning technology has high diagnostic value for patients with angina caused by coronary artery stenosis.The detected data is not significantly different from the gold standard,and can provide reference data for early clinical diagnosis and prediction of myocardial ischemic injury.The application value is high and worthy of promotion.

关 键 词：CT 冠状动脉狭窄 心绞痛 斑块面积 斑块负荷 诊断效能 

分 类 号：R816.2[医药卫生—放射医学]