冠状动脉造影术前超声测量主动脉根部对术中X线曝光时间及造影剂用量的影响  

Influence of preoperative measurement of aortic root diameter by echocardiography on the X-ray exposure time and dose of contrast agent in coronary angiography

作　　者：郑研[1] 郑红[1] 易青[2] 孔令秋[3] 康彧[4] 许勇[3] 殷拥军[3] 聂谦[3] 

机构地区：[1]德阳市人民医院超声科,四川德阳618000 [2]德阳市人民医院心内科,四川德阳618000 [3]成都中医药大学附属医院心内科,成都610072 [4]成都中医药大学附属医院超声科,成都610072

出　　处：《中华实用诊断与治疗杂志》2014年第12期1231-1233,共3页Journal of Chinese Practical Diagnosis and Therapy

摘　　要：目的探讨冠状动脉造影术前超声测量患者主动脉根部内径对术中X线曝光时间、曝光剂量及造影剂用量的影响。方法行冠状动脉造影术患者498例,随机分为观察组261例和对照组237例,观察组冠状动脉造影术前行超声检查,测量主动脉窦内径和升主动脉内径,计算主动脉管壁距对侧冠状动脉间的距离,并根据其结果选择合适造影导管;对照组直接选择5F多功能造影导管。比较2组X线曝光时间、曝光剂量、造影剂用量及更换导管次数。结果观察组X线曝光时间((15.7±6.3)min)、曝光剂量((4 132.7±29.4)mGy)、造影剂用量((80.2±19.5)mL)、更换导管次数(19次)均低于对照组((23.5±4.8)min、(7 365.3±37.9)mGy、(130.1±17.7)mL、56次),2组比较差异有统计学意义(P<0.05)。结论冠状动脉造影术前超声测量患者主动脉根部内径,有助于冠状动脉造影导管的准确选择,减少更换导管次数,缩短X线曝光时间,减少X线辐射量及造影剂用量。Objective To investigate the influence of preoperative measurement of aortic root diameter by echocardiography on the X-ray exposure time,exposure dose and dose of contrast agent in coronary angiography（CAG）.Methods A total of 498 patients undergoing CAG were randomly divided into observation group（n=261）and control group（n=237）.The parameters such as the diameter of the aorta,ascending aorta and the distance between the aorta and the contralateral coronary artery（A-AD）were measured by echocardiography before CAG in observation group.The angiography catheter was chosen according the A-AD.5F multifunctional angiography catheter was selected directly in control group.The X-ray exposure time,exposure dose,dose of contrast agents and changing times of angiography catheter were compared between two groups.Results The X-ray exposure time,exposure dose,dose of contrast agents and changing times of angiography catheter were（15.7±6.3）min,（4 132.7±29.4）mGy,（80.2±19.5）mL and 19 in observation group,significantly lower than those in control group（（23.5±4.8）min,（7 365.3±37.9）mGy,（130.1±17.7）mL,56）（P〈 0.05）.Conclusion The catheter selection according to aortic root diameter assessed by echocardiography before CAG procedure,may contribute to choosing suitable angiography catheter,shortening the X-ray exposure time and dose,and reducing the changing times of catheter and the dose of contrast agents in CAG procedure.

关 键 词：冠状动脉造影术 超声心动描记术 主动脉窦部内径 

分 类 号：R816.2[医药卫生—放射医学]