定量组织速度成像技术评价冠心病患者右心室功能的应用价值

目的]探讨定量组织速度成像技术(QTVI)在冠心病(CAD)患者右心室局部舒缩功能的应用价值。方法]应用QTVI获取45例CAD组和45例正常对照组右心室心肌不同位点的心肌多普勒速度曲线,分析并比较两组人群间收缩期峰值速度(Vs)、舒张早期峰值速度和舒张晚期峰值速度(Ve、Va)、计算Ve/Va、测量等容收缩时间(ICT)、等容舒张时间(IRT)、射血时间(ET)、心室舒张充盈时间(DFT)。结果]CAD患者Vs、Ve、Ve/Va、ET、DFT均比正常对照组减低,Va、ICT、IRT均比正常对照组延长。结论]CAD患者右心室局部舒缩功能受损,QTVI提供了一种精确、快速、无创地评价CAD患者右心室局部舒缩功能变化的新方法。

Assessment of right ventricular function in patients with coronary artery disease using quantitative tissue velocity imaging

Objective]To investigate the value of quantitative tissue velocity imaging(QTVI)in assessing the right ventricular regional diastolic and systolic function in patients with coronary artery disease(CAD).Method]A total of 45 patients with CAD and 45 normal subjects were studied by QTVI,measured velocity of systole(Vs),early diastole velocity(Ve),late diastole velocity(Va),Ve/Va,isovolumetric contraction time(ICT),isovolumetric relaxation time(IRT),ejection time(ET),diastole filling time(DFT).Results] The V...