实时三维超声心动图评价急性肺栓塞右心室收缩功能

Evaluation of right ventricular systolic function in acute pulmonary embolism by real time-three dimensional echocardiography

摘要:

目的：探讨实时三维超声心动图（Real time-three dimensional echocardiography，RT-3DE）评价急性肺栓塞患者右心室收缩功能的临床价值。方法：应用RT-3DE技术测量80例急性肺栓塞的右心室舒张末期容积（Right ventricular end diastolic volume，RVEDV）、收缩末期容积（Right ventricular end systolic volume，RVESV）、每搏量（Right ventricular stroke volume，RVSV）、射血分数（Right ventricular ejection fraction，RVEF），多普勒超声测定三尖瓣反流压力阶差（Tricuspid regurgitation pressure gradi－ent，TRPG）及肺动脉收缩压（Systolic pulmonary artery pressure，SPAP）。选取80名正常人为对照组。结果：急性肺栓塞组与正常对照组比较RVEDV、TRPG及SPAP值增大，RVSV、RVEF减低（P<0.05）。结论：RT-3DE能够较客观地反映急性肺栓塞患者右心室收缩功能的变化，有助于早期诊断。

Abstract:

Objective：To study the clinical value of real time-three dimensional echocardiography（RT-3DE） in evaluating the systolic function of the right ventricle. Methods：The right ventricular end diastolic volume（RVEDV），right ventricular end systolic volume（RVESV），right ventricular stroke volume（RVSV） and right ventricular ejection fraction（RVEF） were measured by RT-3DE and tri－cuspid regurgitation pressure gradient（TRPG） and systolic pulmonary artery pressure（SPAP） were measured by Doppler in 80 cases of acute pulmonary embolism. Eighty normal persons were taken as controls. Results：The values of RVEDV，TRPG and SPAP were increased but the values of RVSV and RVEF were decreased in the acute pulmonary embolism group compared with those in the nor－mal control group（P<0.05）. Conclusions：RT-3DE can reflect the changes of right ventricular systolic function objectively in patients with acute pulmonary embolism，which is helpful for the early diagnosis.