左房扩张指数联合三维斑点追踪技术评价心房颤动的左心房功能  

Left Atrial Expansion Index Combined with Three-dimensional Speckle Tracking Imaging to Evaluate Left Atrial Function in Atrial Fibrillation

作　　者：马晓[1] 唐国璋[1] 赵亮[1] 宫坤[1] 陈晓菲 孙娟娟[1] 付秀秀[1] Ma Xiao;Tang Guozhang;Zhao Liang;Gong Kun;Chen Xiaofei;Sun Juanjuan;Fu Xiuxiu(Department of Cardiac Ultrasound,Affiliated Hospital of Qingdao University,Qingdao,Shandong 266000,China)

机构地区：[1]青岛大学附属医院心脏超声科,山东省青岛市266000

出　　处：《中国超声医学杂志》2023年第5期519-522,共4页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用左房扩张指数(LAEI)联合三维斑点追踪技术(3D-STI)评价心房纤颤(房颤)患者左心房功能。方法健康体检者49例、阵发性房颤患者43例、持续性房颤组患者45例,分别作为对照组、阵发性房颤组、持续性房颤组。测量左房最大容积(Volmax)和最小容积(Volmin)并计算LAEI及3D-STI测量左心房三维整体应变(GLS、GCS)及各达峰时间标准差(SD-TPLS、SD-TPCS、SD-TPRS),比较3组各指标差异及LAEI与3D-STI各参数的相关性。结果3组比较,阵发性房颤组与持续性房颤组LAEI及3D-STI的应变指标GLS、GCS均减低,SD-TPLS、SD-TPCS、SD-TPRS相对增加(P<0.05),持续性房颤组较阵发性房颤组,GLS、GCS与LAEI减低,SD-TPLS、SD-TPCS增加(P<0.05)。LAEI与GLS、GCS呈正相关(P<0.01),与SD-TPLS、SD-TPCS呈负相关(P<0.01)。结论LAEI及3D-STI GLS均与房颤的进展呈负相关。应用LAEI及3D-STI可早期发现房颤患者左心房结构和功能的改变,准确评价房颤的进展程度和治疗疗效。Objective To evaluate left atrial function in patients with atrial fibrillation(AF)by left atrial dilatation index(LAEI)combined with three-dimensional speckle tracking imaging(3D-STI).Methods 49healthy subjects,43patients with paroxysmal atrial fibrillation and 45patients with persistent atrial fibrillation were selected as control group,paroxysmal atrial fibrillation group and persistent atrial fibrillation group respectively.The maximum volume(Volmax)and minimum volume(Volmin)of the left atrium were measured and LAEI was calculated,the three-dimensional global strain(GLS,GCS)and the standard deviation of each peak time(SD-TPLS,SD-TPCS,SDTPRS)of the left atrium measured by 3D-STI.The differences of the three groups and the correlation between LAEI and 3D-STI parameters were compared.Results Compared with the three groups,LAEI and the strain indexes GLS and GCS of 3D-STI in paroxysmal atrial fibrillation group and persistent atrial fibrillation group were decreased,and SD-TPLS,SD-TPCS and SD-TPRS were increased(P<0.05).Compared with paroxysmal atrial fibrillation group,GLS,GCS and LAEI were decreased,and SD-TPLS and SD-TPCS were increased in persistent atrial fibrillation group(P<0.05).LAEI was positively correlated with GLS and GCS(P<0.01),and negatively correlated with SD-TPLS and SD-TPCS(P<0.01).Conclusions LAEI and GLS are negatively correlated with the progression of atrial fibrillation.The application of LAEI and 3D-STI can early detect the changes of left atrial structure and function in patients with atrial fibrillation,and accurately evaluate the progress and therapeutic effect of atrial fibrillation.

关 键 词：房颤 斑点追踪成像 左心房功能 左房扩张指数 

分 类 号：R541.75[医药卫生—心血管疾病] R445.1[医药卫生—内科学]