摘要
目的:应用多普勒组织成像(DTI)技术评价肺高压患者右心室功能的变化。方法:应用DTI技术对3组不同程度肺高压患者的三尖瓣环运动频谱进行分析, 测量三尖瓣前叶、后叶及隔叶瓣环的收缩期峰值速率(Sa)、舒张早期峰值速率(Ea)及舒张晚期峰值速率(Aa),对3组患者各参数进行比较,并与正常组对照分析。结果:肺动脉高压组较正常组诸参数有显著差异:肺高压Ⅱ组及Ⅲ组,三尖瓣环前叶、隔叶Sa较对照组减小(P<0.05)。肺高压Ⅲ组前叶Sa较Ⅰ组亦有统计学差异(P<0.05)。Ⅲ组后叶瓣环Sa较对照组减小(P<0.05)。肺高压Ⅲ组,前叶瓣环Ea较对照组减小(P<0.05),隔叶Ea值较对照组与Ⅰ组减小(P<0.05),隔叶和后叶瓣环Aa肺高压Ⅲ组均较对照组减低(P<0.05)。肺高压Ⅱ组,Ⅲ组前叶瓣环Ea/Aa均较对照组减小(P<0.05),隔叶、后叶Ea/Aa值Ⅲ组较对照组减小(P<0.05)。结论:中至重度肺动脉高压能引起右心室舒缩功能的减低,收缩功能出现损害早于舒张功能。
Abstract
Objective: To assess systolic and diastolic function of right ventricle in patients with pulmonary hypertension by Doppler tissue imaging(DTI) technique. Methods: The patients with pulmonary hypertension were divided into three groups. The motion of tricuspid annular of patients were analyzed by DTI and the velocity of anterior, septal and posterior of tricuspid annular, systolic velocity(Sa), early diastolic velocity(Ea), late diastolic velocity(Aa), were measured. Meanwhile, these parameters were compared with control group. Results: Compared with control group, Sa of anterior and septal tricuspid annular were decreased in groupⅡ, Ⅲ(P<0.05). In group Ⅲ, Sa of anterior tricuspid annular was worse than groupⅠ(P<0.05). Sa of posterior tricuspid annular, Ea of anterior tricuspid annular were lower than those of control group(P<0.05). Meanwhile, Ea of septal tricuspid annular were lower than those of normal group and groupⅠ(P<0.05). In group Ⅲ, Aa and Ea/Aa of septal and posterior tricuspid annular were lower than those of normal group(P<0.05). In groupⅡ and Ⅲ, Ea/Aa of anterior tricuspid annular were lower than those of control group(P<0.05). Conclusion: Pulmonary hypertension lead to moderate or severe dysfunction of right ventricle, systolic dysfunction was involved earlier than those of diastolic function.
关键词
高血压 /
肺性 /
心室功能 /
右 /
超声心动描记术 /
多普勒 /
彩色
Key words
hypertension /
pulmonary /
ventricular function /
right /
echocardiography /
Doppler /
color
陈 冉;杨 军;任卫东;马春燕.
组织多普勒成像技术评价肺动脉高压患者右心室收缩及舒张功能[J]. 中国临床医学影像杂志. 2006, 17(7): 365-367
CHEN Ran;YANG Jun;REN Wei-dong;MA Chun-yan.
Assessment of right ventricular function in patients with pulmonary hypertension by Doppler tissue imaging[J]. Journal of China Clinic Medical Imaging. 2006, 17(7): 365-367
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