心电与循环2020年第39卷第1期
生气头疼
冠状动脉造影（coronary angiography ，CAG ）是诊断冠心病的金标准，但其只能显示造影剂填充的二
维管腔结构，不能进一步观察病变血管管腔的结构
信息和血管壁的详细信息[1]。由于投照角度的问题，
不同冠状动脉截段直径在显示器上会有差异[2]，因此
会干扰手术医师对支架的选择。随着冠状动脉血管
内超声（intravascular ultrasound ，IVUS ）的广泛应用，[摘要]
目的评价定量冠状动脉造影（QCA ）与血管内超声（IVUS ）在冠心病不同冠状动脉截段参考血管直径的测量差异。方法选择2015年12月至2018年10月在导管室同时行冠状动脉造影及IVUS 检查的患者共278例，分别测量不同
冠状动脉截段病变血管的参考血管直径，并进行比较，寻找相对简单的公式应用于两者内在联系，并随机选择额外300处病变（280例患者）血管进行验证分析。
丝绸之路终点结果不同冠状动脉截段病变血管的参考血管直径QCA 和IVUS 测值之间存在显著差异，右冠状动脉直径IVUS 测值较QCA 测值大，旋支直径IVUS 测值较QCA 测值小，这种差异在血管远端更明显。通过线性回归分析，QCA 测量的不同冠状动脉截段参考血管直径由相应公式推算出IVUS 测出的直径，并通过额外300处血管病变测量的数值得到相应验证。
结论不同冠状动脉截段定量冠状动脉造影与血管内超声测值之差具有规律性，有助于冠状动脉介
入治疗中确定血管直径。
[关键词]定量冠状动脉造影血管内超声血管直径The difference of quantitative coronary angiography and intravascular ultrasound in measuring diameter of different coronary artery gments克雷洛夫寓言全集
研讨会英文LI Zhenwei,LIN Shaoyi,HE Fuwei,et al.Department of Cardiology,Ningbo First Hospital,Ningbo 315000,China Corresponding author:CHEN Xiaomin ；E-mail:
[Abstract]Objective To evaluate the difference of quantitative coronary angiography （QCA ）and intravacular
ultrasound （IVUS ）in measuring diameter of different coronary gments.烤面
一辈子的好兄弟
Methods 278patients underwent both QCA and IVUS during lective coronary angiography from December 2015to October 2018in catheterization lab.The reference vesl diameter of stenosis gments of different coronary arteries was measured by QCA and IVUS,respectively.The relationship between the two measurements was determined and ud to form formulas.The formulas were testified in 300diad vesl gments prospectively （280patients ）.Results The measurements of reference coronary diameter in different diad artery gments were significantly different between QCA and IVUS.Right coronary artery diameter measured by IVUS was larger than that measured by QCA,while left circumflex artery diameter measured by IVUS was smaller than that measured by QCA.Such difference was more obvious in distal vesl.Bad on linear regression analysis,corresponding formulas were formed from QCA measurement of different reference gment.The formulas could predict the measurement of IVUS and the prediction accuracy was testified in following 300diad vesl gments.Conclusion There is a regularity difference between QCA and IVUS measurements of different
coronary gments,which may be benefit in determining actual vesl diameter during coronary interventional treatment.[Key words]Quantitative coronary angiography Intravascular ultrasound
Vesl diameter 不同冠状动脉截段定量冠状动脉
造影与血管内超声测值的差异与
意义
李振威林少沂贺甫威王世奇杜为平崔翰斌陈晓敏
荫论著DOI ：10.12124/j.issn.2095-3933.2020.1.2019-3816作者单位：315000浙江省宁波市第一医院心内科
通信作者：陈晓敏，E-mail ：自制剁辣椒
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