摘要
目的：应用组织多普勒技术评价肺动脉高压患者右室收缩功能，并与对照组进行对比分析，研究肺动脉高压患者右室收缩功能的变化。方法：选择62例肺动脉高压患者和30例正常人，进行彩色多普勒超声心动图检测，测量右室游离壁厚度、舒张末期面积，双平面Simpson法，测右室射血分数（RVEF），组织多普勒测量三尖瓣环（前叶瓣环、后叶瓣环、隔瓣瓣环）收缩期峰值运动速率（Sa）。脱机分析右心室游离壁及室间隔基底段、中间段及心尖段收缩期峰值应变（S）及应变率（SR）。结果：肺动脉高压患者的右室收缩功能减低，且右室收缩期峰值S及SR均不同程度的低于对照组，其中右室游离壁基底段及中间段收缩期峰值S均低于正常对照组。结论：肺动脉高压患者右室心肌收缩期峰值S、SR及瓣环Sa可作为评价右室收缩功能的有效指标之一，结合右室几何学指标及RVEF等可更准确的评估右室收缩功能的情况。
Abstract
Objective: To evaluate ventricular systolic function of pulmonary hypertension by tissue Doppler imaging techniques, and compare with the control group. To observe the changes of ventricular systolic function parameters in pulmonary hypertension patients. Methods: Sixty-two pulmonary hypertension patients and 30 normal subjects were observed. Color Doppler echocardiograph were performed and ventricular free wall thickness and end-diastolic area were observed. Right ventricular ejection fraction(RVEF) were measured with double plane Simpson formula. Peak systolic velocity of tricuspid valve ring(anterior leaflet, posterio leaflet, septal leaflet) was measured with tissue Doppler echocardiography. Peak systolic myocardial strain, strain rate of free wall of right ventricular and basal segment of interventricular septum, intermediate segment, apical segment were analysed off-line. Results: The right ventricular systolic function of pulmonary hypertension patients was decreased. The peak systolic myocardial velocity, strain, strain rate were lower than those of control group in different degree. Peak systolic myocardial strain of free wall of right ventricular basal segment, intermediate segment were lower than those of control group. Conclusion: The right ventricular peak systolic myocardial strain and strain rate, peak systolic velocity of tricuspid valve ring of pulmonary hypertension patients could be used as markers for evaluating ventricular systolic function. The ventricular systolic function could be evaluated more accurate when combined with right ventricular geometry indices and RVEF.
关键词
高血压 /
肺性 /
心室功能 /
右 /
超声心动描记术 /
多普勒
Key words
Hypertension /
pulmonary /
Ventricular function /
right /
Echocardiography /
Doppler
李 倩;黄 进;张华民;付世文;李文伦;缪 伟;王军华;王玉玲.
应用组织多普勒成像技术对肺动脉高压患者右室收缩功能的研究[J]. 中国临床医学影像杂志. 2010, 21(2): 77-79
LI Qian;HUANG Jin;ZHANG Hua-min;FU Shi-wen;LI Wen-lun;MIAO Wei;WANG Jun-hua;WANG Yu-ling.
Research on right ventricular systolic function in pulmonary hypertension by tissue Doppler imaging techniques[J]. Journal of China Clinic Medical Imaging. 2010, 21(2): 77-79
中图分类号：
Ｒ543.2
Ｒ331.31
Ｒ445.1
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