三维斑点追踪成像评价心房颤动患者左心房功能和同步性  

Three-dimensional Speckle Tracking Imaging in Assessment of the Left Atrial Function and Synchrony in Patients with Atrial Fibrillation

作　　者：周红 李勇[1] 王吴刚[1] 孟媛媛[1] 唐国璋[1] 王志斌[1] Zhou Hong;Li Yong;Wang Wugang;Meng Yuanyuan;Tang Guozhang;Wang Zhibin(Department of Cardiac Ultrasound,the 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》2020年第9期802-805,共4页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用三维斑点追踪成像(3D-STI)技术评价非瓣膜性心房颤动(房颤)患者左心房功能及同步性。方法选择阵发性房颤患者30例、持续性房颤患者25例和健康体检者30例分别为阵发性房颤组、持续性房颤组和对照组。应用3D-STI测量左心房三维整体纵向、圆周、径向应变(GLS、GCS、GRS)及各应变标化达峰时间标准差(SD-TPLS、SD-TPCS、SD-TPRS),计算左心房僵硬度(LASt),比较三组间的差异以及LASt与三维应变参数的相关性。结果与对照组比较,阵发性房颤组和持续性房颤组左心房各应变参数降低,各应变标化达峰时间标准差和LASt增加(P<0.05)。与阵发性房颤组相比,持续性房颤组GLS、GCS、GRS降低,SD-TPLS和LASt增加(P<0.05)。LASt与GLS、GCS、GRS呈负相关(r_s=-0.85、-0.85、-0.78,P<0.01),与SD-TPLS、SD-TPCS、SD-TPRS呈正相关(r_s=0.69、0.51、0.64,P<0.01)。结论阵发性房颤患者和持续性房颤患者左心房应变及同步性出现不同程度的减低,3D-STI可有效评估房颤患者左心房功能和同步性改变。Objective To evaluate the left atrial function and synchrony in nonvalvular atrial fibrillation patients by applying three-dimensional speckle tracking imaging(3 D-STI).Methods 30 patients with paroxysmal atrial fibrillation,25 patients with persistent atrial fibrillation and 30 healthy subjects were selected as paroxysmal atrial fibrillation group,persistent atrial fibrillation group and control group respectively.3 D-STI was performed to obtained the left atrial three-dimensional global longitudinal strain,circumferential strain,radial strain(GLS,GCS,GRS)and the standardized standard deviation of each strain′s peak time(SD-TPLS,SD-TPCS,SD-TPRS).Then the left atrial stiffness were calculated.The differences among the three groups and the correlations between LASt and three-dimensional strain parameters were analyzed.Results Compared with the control group,the left atrial strain parameters of paroxysmal atrial fibrillation group and persistent atrial fibrillation group were decreased,the standardized standard deviation of each strain′s peak time and LASt were increased(P<0.05).Compared with the paroxysmal atrial fibrillation group,GLS,GCS and GRS were decreased,while SD-TPLS and LASt were increased in the persistent atrial fibrillation group(P<0.05).LASt had negative correlation with GLS,GCS and GRS(r_s=-0.85,-0.85,-0.78,P<0.01),whereas showed positive correlation with SD-TPLS,SD-TPCS and SD-TPRS(r_s=0.69,0.51,0.64,P<0.01).Conclusions The left atrial function and synchronization of patients with paroxysmal atrial fibrillation and persistent atrial fibrillation are decreased in varying degrees.3 D-STI can evaluate the changes of the left atrial function and synchronization in patients with atrial fibrillation effectively.

关 键 词：心房颤动 超声心动描记术 斑点追踪成像 心房功能 左 

分 类 号：R445.1[医药卫生—影像医学与核医学] R541.75[医药卫生—诊断学]