组织多普勒分析慢性心力衰竭患者左心室失同步运动  

Tissue Doppler imaging analysis on left ventricle desynchronization motion in patients with chronic heart failure

作　　者：张永恒[1] 吴晓萍[1] 

机构地区：[1]内蒙古医学院附属医院超声诊断科,内蒙古呼和浩特010050

出　　处：《中国医学影像技术》2011年第11期2202-2205,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的运用多普勒定量组织速度成像技术(QTVI)分析慢性充血性心力衰竭(CHF)患者的左心室壁运动的失同步特点。方法以慢性心力衰竭患者30例为病例组,30名正常人为对照组。获取标准心尖二腔、心尖四腔、心尖长轴切面的二维彩色组织多普勒图像,脱机测量左心室各室壁基底段、中间段、心尖段的时间间期并计算不同步指标。结果①对照组左心室同一室壁内不同节段、不同室壁同一节段的收缩期达峰时间(Ts)、舒张早期达峰时间(Te)差异均无统计学意义(P均>0.05);②与对照组比较,病例组失同步指标差异均有统计学意义(P均<0.05)。结论 CHF患者左心室壁运动普遍存在失同步性。QTVI可以定量、客观地评价心脏失同步运动。Objective To analyze desynchronization feature of left ventricle wall motion for chronic congestive heart failure （CHF） using quantitative tissue velocity imaging （QTVI）. Methods Thirty CHF patients were chosen （CHF group）, while 30 healthy adults were selected as control group. Two-dimensional color tissue Doppler images of standardized two- chamber, four-chamber and long-axis view of cardiac apex were taken, time intervals of basal section, middle section, apical section of every ventricle wall in left ventricle were off-line detected, and indexes for desynchronization were calculated. Results ①Time to peak systolic （Ts）, time to peak early diastolic （Te） of different fractions in the same left ventricle wall and different left ventricular wall of control group in the same fraction were not significantly different （all P〉0.05）. ②Indexes for desynehronization between control group and CHF group were significantly different （all P〈0.05）. Conclusion Desynchronization commonly existed in left ventricle motion of CHF patients. QTVI can be used to quantitatively and objectively evaluate heart desynchronization.

关 键 词：慢性充血性心力衰竭 失同步运动 定量组织速度成像 

分 类 号：R541.61[医药卫生—心血管疾病] R445.1[医药卫生—内科学]