右冠状动脉左45°造影测量准确性研究  

The measurement accuracy of right coronary artery during coronary angiography at 45Gdegree left oblique position

作　　者：张祥海[1] 周林[1] 李君[1] 闫红野[1] 张靖[1] ZHANG Xianghai;ZHOU Lin;LI Jun;YAN Hongye;ZHANG Jing(Department of Radiology,Research Institute of Surgery,Daping Hospital,Army Medical University,Chongqing 400042,China)

机构地区：[1]陆军军医大学大坪医院野战外科研究所放射科,重庆400042

出　　处：《实用放射学杂志》2019年第6期967-969,共3页Journal of Practical Radiology

摘　　要：目的研究右冠状动脉左斜位45°造影时测量的准确性.方法将右冠状动脉左斜位45°的造影图像平均分为9个区域,回顾性随机收集手术图像中指引导丝标记段位于中心区(45例)或中下区(45例)的图像.通过导管校准法对指引导丝标记段进行测量,将测量值与实际值(30mm)进行比较.结果方差分析提示,3组数值有统计学差异(F=4.59,P<0.05).而两两比较提示,中心区测量值(31.19±4.12)mm和中下区测量值(29.55±2.75)mm与实际值(30±0)mm间均无统计学差异(P>0.05)。中心区与中下区测量值有统计学差异(P<0.05)。中下区测量结果的误差率(-1.5%)比中心区(3.9%)更小。结论右冠状动脉左斜位45°造影时,图像中下区的测量值比中心区更精确,是右冠状动脉介入手术中较小测量误差的图像区域。Objective To explore the measurement accuracy of right coronary artery during coronary angiography (CAG)at 45Gdegree left oblique position.Methods The images of right coronary artery angiographic view of 45Gdegree left oblique position were divided into nine average areas.The images with marker segment of guiding wire located in the central area (n=45)or subcentral area (n=45)of CAG cases were collected retrospectively and randomly.The marker segment was measured by catheter calibration method,and the measure values were compared with the actual length (30 mm).Results A N OVA analysis suggested statistical differences among the three groups (F=4.59,P<0.05).By paired comparison,no significant differences were found in measured values between central areas (3 1.1 9± 4.12)mm or subcentral areas (29.55±2.75)mm and the actual length (P>0.05).Significant differences were found in measured values between central areas and subcentral areas (P<0.05).The measuring error of subcentral areas (-1.5%)was less than that of central areas (3.9%).Conclusion During CAG at 45Gdegree left oblique position,the values of subcentral area were more accurate than those of central area and the subcentral area was thus regarded as image area with less measurement error in interventional surgery.

关 键 词：冠状动脉造影 测量 投照角度 指引导丝 

分 类 号：R814.43[医药卫生—影像医学与核医学] R543.3[医药卫生—放射医学]