基于四维超声心动图应变评估左心房功能的初步研究  

Study on the strain assessment of left atrial function based on four dimensional echocardiography

作　　者：谭龙 王情情 王欣[3] 董敏[2] 郭颖 周子裕 朱火兰 汪芳[2] Tan Long;Wang Qingqing;Wang Xin;Dong Min;Guo Ying;Zhou Ziyu;Zhu Huolan;Wang Fang(Health Service Department of the Guard Bureau of the Joint Staff Department,Beijing 100017,China;不详)

机构地区：[1]中央军委联合参谋部警卫局卫生保健处,北京100017 [2]北京医院心内科,国家老年医学中心,中国医学科学院老年医学研究院 [3]北京医院临床试验研究中心国家老年医学中心,中国医学科学院老年医学研究院

出　　处：《临床内科杂志》2021年第7期461-464,共4页Journal of Clinical Internal Medicine

基　　金：国家重点研发计划资助项目(2020YFC2008106)。

摘　　要：目的采用四维斑点追踪超声心动图测量健康成年人左心房应变数值,分析其与常规超声参数的关系。方法纳入健康成年人68例,应用GE Vivid E95型超声心动图仪获得并留存二维及四维超声心动图图像,并使用EchopacV203软件进行图像处理,分析其与性别、年龄等参数及常规超声心动图左心房测量值间的关系,建立健康成年人左心房四维应变正常值参考区间。结果68例健康成年人的四维超声心动图左心房应变参数正常值参考范围分别为:储备期长轴应变:10.90%~40.30%;管道期长轴应变:-27.26%~-4.14%;房缩期长轴应变:-21.56%~1.56%;房缩期环形应变:-28.94%~-3.06%。除性别与储备期环形应变和管道期环形应变存在相关性(P<0.05)外,其余应变参数与年龄、性别、身高等一般资料均无相关性(P>0.05)。四维应变参数与A峰、E峰及左心房前后径等常规超声心动图左心房参数无相关性(P>0.05)。结论左心房四维超声应变值受心率、年龄等临床基础因素影响较小,独立于左心房常规超声心动参数,在稳定评估左心房功能中具有较高价值。Objective To measure the strain value of the left atrium by four-dimensional speckle-tracking echocardiography in healthy adults,and analyze the relationship between the strain value and conventional echocardiography of left atrium.Methods Sixty-eight healthy individuals were enrolled and examined by using GE Vivid E95 mechine.Both two-dimensional and four-dimensional images were obtained.All the data were stored and processed by Echopac V203.The relationship between the data and gender,age,conventional echocardiography parameters and other parameters was analyzed.The reference range of normal value of left atrial four-dimensional strain was established.Results The reference ranges of the value of left atrial four-dimensional strain in 68 healthy individuals were:left atrial longitudinal strain during reservoir phase:10.90%-40.30%;left atrial longitudinal strain during conduit phase:-27.26%-4.14%;longitudinal strain during contraction phase:-21.56%-1.56%;circumferential strain during contraction phase:-28.94%-3.06%.Except for the circumferential strain during the reservoir phase and the circumferential strain during conduit phase(P<0.05),the rest of the strain parameters had no correlation with general information such as age,gender,height,and so on(P>0.05).There was no correlation between the four-dimensional strain parameters and the parameters of conventional echocardiography,such as peak A,peak E,anteroposterior diameter of left atrium(P>0.05).Conclusion The four-dimensional ultrasonic strain value of the left atrium is less affected by the heart rate,age and other clinical basic factors,and independent of the conventional echocardiographic parameters of the left atrium,which has a higher value in the stable assessment of left atrial function.

关 键 词：左心房 四维斑点追踪 应变 正常值参考范围 

分 类 号：R540.45[医药卫生—心血管疾病]