斑点追踪技术评价肺高压对左室收缩功能和同步性的影响  

Assessment of Left Ventricular Systolic Function and Synchrony Using Speckle Tracking Echocardiography in Patients with Pulmonary Hypertension

作　　者：赵斓婷[1] 杨军[1] 马春燕[1] 白洋[1] 刘爽[1] 

机构地区：[1]中国医科大学附属第一医院心血管超声科,沈阳市110001

出　　处：《中国超声医学杂志》2013年第3期222-224,共3页Chinese Journal of Ultrasound in Medicine

基　　金：高等学校博士学科点专项科研基金联合资助项目(No.20112104110010)

摘　　要：目的应用斑点追踪技术(speckle tracking echocardiography,STE)评价肺高压(PH)对左室收缩功能和左室同步性的影响。方法应用STE测量40例肺高压患者(PH组)及20例健康受检者(Con组)左室三腔观、四腔观、两腔观、平均总体纵向应变(GLPS-LAX、GLPS-A4C、GLPS-A2C、GLPS-Avg)及左室不同步指数(Ts18-SD)。同时将PH组分为轻、中、重度组,比较各组间差异。结果 PH组GLPS-LAX、GLPS-A4C、GLPS-Avg低于Con组(P<0.05);重度组Ts18-SD升高(P<0.01),且与PH程度相关。结论 PH患者左室收缩功能减低且存在左室收缩不同步。STE可敏感反映PH对左室收缩功能和同步性的影响。Objective To assess left ventricular systolic function and synchrony in patients with pulmonary hy- pertension using speckle tracking echocardiography（STE）. Methods 40 patients with pulmonary hypertension（PH） and 20 age-matched controls（Con） were enrolled. Left ventricular global longitudinal peak strain of long axis（GLPS- LAX）, apical 4 chamber（GLPS-A4C）, apical 2 chamber（GLPS-A2C）, average（GLPS Avg） and standard deviation of time to peak longitudinal strain of 18 segments（Ts18-SD） were measured using STE. Results GLPS-LAX, GLPS A4C and GLPS-Avg in PH were lower than in Con（P〈0.05） ;Ts18-SD rose in patients with severe PH（P〈0.01） and was related to the level of PH. Conclusions Patients with PH have the reduction of left ventricular systolic function and synchrony. STE could sensitively reflect the left ventricular systolic function and synchrony in patients with PH.

关 键 词：斑点追踪技术 肺高压 心室功能 

分 类 号：R445.1[医药卫生—影像医学与核医学] R544.16[医药卫生—诊断学]