冠脉CTA与CAG的临床应用对比研究

Comparative Study on the Clinical Application of CTA and CAG in Coronary Artery

目的探讨64排128层螺旋CT冠状动脉CTA和冠状动脉造影CAG的临床应用对比研究。方法回顾性分析2018年1月至2019年10月间35例均行冠脉CTA与CAG的患者影像资料,将左右冠状动脉主干及其小分支的狭窄数量及狭窄程度进行对比分析。结果发现CAG检查在左右冠状动脉主干的狭窄数量检出率及狭窄程度准确率与CTA检查结果基本一致(P<0.001,Kappa=0.518);但CAG检查在左右冠状动脉小分支的狭窄数量检出率及狭窄程度准确率均明显比CTA检查高(P=0.974,Kappa=0.001)。结论冠脉CTA检查可以准确对左右冠状动脉主干的狭窄数量检出率及狭窄程度作出判断,但对于左右冠状动脉小分支的判断上仍有提高空间;CAG作为冠心病的"金标准",通过对比研究分析,可验证CTA判断的准确性,并提高冠脉小分支狭窄的检出率,为临床提供最真实的影像学资料。

Objective To study the clinical application of 64 slices 128 slice spiral CT coronary CTA and CAG.Methods The imaging data of 35 patients with CTA and CAG from January 2018 to October 2019 were analyzed retrospectively.The number and degree of stenosis of left and right main coronary arteries and their small branches were compared.Results There was no significant difference in the detection rate and the accuracy rate of stenosis degree of the left and right main coronary arteries between CAG and CTA,but there was no significant difference between the two(P<0.001,Kappa=0.518).however the detection rate and the accuracy rate of stenosis degree of CAG in the left and right small branches of coronary arteries were significantly higher than that of CTA,and the difference was statistically significant Meaning(P=0.974,Kappa=0.001).Conclusion CTA is a noninvasive and high spatial resolution imaging diagnostic technique,and it can accurately determine the detection rate and degree of stenosis of the left and right main coronary arteries,which has great clinical application value.However,the detection rate and degree of stenosis of the left and right small coronary artery branches still need to be improved technically.CAG as coronary heart Through comparative study and analysis,we can verify the accuracy of CTA judgment,improve the detection rate of small branch stenosis of the coronary artery,and provide the most real imaging data for clinical practice.