斑点追踪技术评价肺动脉高压患者右心室舒张功能的研究  

Assessment of right ventricular diastolic function in patients with pulmonary hypertension by speckle tracking imaging echocardiography

作　　者：闫瑞玲[1] 郑俊平 陈昆迪[1] 陈新梅 庄磊[4] 

机构地区：[1]兰州军区兰州总医院超声科,甘肃兰州730050 [2]解放军12医院 [3]甘肃省定西市人民医院 [4]兰州军区乌鲁木齐总医院超声科

出　　处：《西北国防医学杂志》2013年第6期524-526,共3页Medical Journal of National Defending Forces in Northwest China

摘　　要：目的:应用斑点追踪成像技术评价肺动脉高压患者右心室舒张功能,并与常规多普勒超声心动对比研究。方法:肺动脉高压患者31例,正常对照组33例,二维斑点追踪成像技术获得右心室各个节段舒张期纵向应变率及运动速度。结果:右心室游离壁及室间隔各段舒张早期应变率(SRe)有显著性差异(P<0.05);右室游离壁及室间隔舒张早期应变率(SRe)平均值与右室游离壁厚度、肺动脉收缩压相关性较好。结论:舒张早期应变率与右室游离壁厚度及肺动脉收缩压相关性较好,二维斑点追踪成像技术为评价肺动脉高压右室舒张功能提供了一种可行的方法。Objective：To evaluate right ventricular diastohc function with speckle tracking imaging echocardio- graphy in patients with pulmonary hypertension and compare the results with routine Doppler echocardiography find- ings. Methods：Thirty -one cases of pulmonary hypertension patients were selected and 33 healthy volunteers were used as controls. Longitudinal strain rate and velocity at each stage of fight ventricular diastole were measured by two - dimension speckle tracking imaging. Results： Compared with the control group, strain rate of fight ventricu- lar free wall and ventricular septum at each stage of early diastolic phase were statistically different（ P 〈 0.05 ）. The averaged early - diastolic strain rate of right ventricular free wall and ventricular septum was closely correlated to the thickness of fight ventricular free wall and pulmonary systolic pressure. Conclusion： The early - diastolic strain rate are closely correlated to the thickness of right ventricular free wall and pulmonary systolic pressure, two - di- mension speckle tracking imaging would be a potential way to evaluate right ventricular diastolic funtion in patients with hypertension.

关 键 词：超声波诊断 肺动脉高压 斑点追踪成像 右心室 舒张功能 

分 类 号：R445.1[医药卫生—影像医学与核医学]