摘要
目的应用瓣环组织位移技术(tissue motion annular displacement,TMAD)测量三尖瓣环位移(tricuspid annular displacement,TAD)评价肺心病患者右心室收缩功能(right ventricular ejection fraction,RVEF)。方法选取2011年10月-2013年3月在我院明确诊断为肺心病患者43例,依据肺动脉压力分为两组,A组(30 mmHg<肺动脉收缩压<50 mmHg)(1 mmHg=0.133 kPa)20例,B组(肺动脉收缩压>50 mmHg)23例,健康对照组32例。应用TMAD技术测得右心室游离壁三尖瓣环收缩期峰值位移(T1)、室间隔瓣环收缩期峰值位移(T2)及三尖瓣环连线中点收缩期峰值位移(Tm)、右心室纵向缩短率(Tm%),右心室射血分数由实时三维超声心动图测得,并对结果进行比较。结果与健康对照组比,肺心病A组及B组T1、T2、Tm、Tm%及RVEF均低于正常对照组(P<0.05);而肺心病B组T1、T2、Tm、Tm%及RVEF均低于A组(P<0.05);三尖瓣环位移各参数与RVEF均呈显著正相关(P均<0.05)。结论 TMAD技术测量TAD可以迅速、准确评价肺心病患者不同时期右心室收缩功能变化。
Objective To assess the right ventricular systolic function in patients with corpulmonale with tricuspid annular displacement （TAD） measured by tissue motion annular displacement （TMAD） technology. Methods Forty three patients diagnosed with corpulomnale admitted to our hospital from October 2011 to March 2013 were divided into two groups, group A （30 mmHg 〈 PASP 〈 50 mmHg） with 20 cases, group B （PASP 〉 50 mmHg） with 23 cases, in addition, 32 cases of healthy individuals added as normal control group. The peak systolic displacements of tricuspid annulus at right ventricular free wall （T1）, interventricular septum （T2）, midpoint of tricuspid annulus （Tm） and the right ventricular longitudinal shortening （Tm%） were measured by TMAD, while ventricular ejection fraction was measured by real-time three-dimensional echocardiography, then all data collected in three groups were compared. Results Compared with normal control group, T1, T2, Tin, Tm% and RVEF of patients in group A and B with corpulmonale were lower than that in the normal control group （P 〈 0.05）, T1, T2, Tm, Tm% and RVEF of patients in group B were lower than that in group A （P 〈 0.05）, the difference was statistically significant. The parameters of TAD and RVEF were significantly positive correlated （P 〈 0.05）. Conclusion The measurement of TAD with TMAD technology can evaluate the changes of right ventricular systolic function in patients during different stages rapidly and accurately.
出处
《解放军医学院学报》
CAS
2014年第8期831-833,共3页
Academic Journal of Chinese PLA Medical School
关键词
斑点追踪显像
三尖瓣环收缩期位移
肺心病
右心室功能
speckle tracking imaging
tricuspid annular displacement
pulmonary heart disease
right ventricular function
