320排动态容积CT冠状动脉成像在诊断隐匿型冠心病中的应用

Preliminary Application of Coronary Artery Imaging by 320-Slice Dynamic Volume CT in the Diagnosis of Latent Coronary Heart Disease

目的:探讨320排动态容积CT冠状动脉成像在隐匿性冠心病中的诊断价值。方法:选择医院体检中心体检的疑似隐匿型冠心病患者41例,均行均行320排动态容积CTA检查和ICA检查,评价患者CTA诊断结果。结果:CTA图像质量4分的患者占85.36%;CTA可评估率为99.29%;针对冠状动脉狭窄率≥50%的节段,CTA敏感度和准确度分别为93.06%和95.61%;针对狭窄率≥70%的节段,CTA敏感度和准确度分别为100%和95.78%。结论:320排动态容积CT冠状动脉成像技术判断隐匿性冠心病具有较高准确性,可作为无症状人群冠状动脉狭窄筛查的非创伤性方法。

Objective:To investigate the diagnostic value of coronary artery imaging by 320-slice dynamic volume CT for the latent coronary artery disease.Methods:41cases with the suspected latent coronary heart disease in the physical examination center of Yongfeng Hospital of Traditional Chinese Medicine had been selected and examined with 320-slice dynamic volume CTA and ICA,and the CTA diagnosis results had been evaluated.Results:The patients of the CTA image quality above 4points accounted for 85.36%;the evaluation rate of CTA was 99.29%;the stenosis rate for coronary artery was more than or equal to 50% of the segments,the sensitivity and the accuracy of CTA respectively93.06% and 95.61%;the pertinent stenosis rate was greater than or equal to 70% of segments,the sensitivity and the accuracy of CTA respectively 95.78% and 100%.Conclusion:Coronary artery imaging by 320-slice dynamic volume CT is a non-invasive method to judge the latent coronary artery disease with high accuracy.