实时三维超声心动图对比评价正常右心室及左心室功能

目的 观察利用实时三维超声心动图(RT-3DE)评估、比较成年人正常心脏左右心室的可行性,并探讨左右心室之间的关系.方法 应用RT-3DE全容积成像采集58名心脏正常成年人的心脏三维数据,在TomTec工作站中分析获得右心室舒张末期容积(EDV)、收缩末期容积(ESV)、每搏输出量(SV)和射血分数(EF)；在Qlab工作站中分析获得左心室舒张末期容积(EDV)、收缩末期容积(ESV)、每搏输出量(SV)和射血分数(EF).结果 右心室EDV(85.84±20.82)ml]、ESV(41.87士10.48)ml]分别大于左心室EDV(69.37士17.83)ml]、ESV(26.46±8.26) ml](P均＜0.001),而右心室EF(50.94士5.57)％]小于左心室EF(61.97±6.48)％,P＜0.001].左心室SV(42.91±11.72) ml]与右心室SV(43.96±12.15) ml]差异无统计学意义(P=0.273).左右心室的对应参数均有相关性.结论 RT-3DE是评估左右心室容积和功能的可行方法,且其相应参数在左右心室间是相关的.

Comparison between normal right ventricle and left ventricle with real-time three-dimensional echocardiography

Objective To assess the feasibility of real-time three-dimensional echocardiography (RT-3DE) in evaluation on the right and left ventricle of normal heart in adult, and to observe the relationship between the two ventricles. Methods Full-volume imaging of RT-3DE was performed in 58 adults with normal heart to collect 3D database of the heart. Then the database was transmitted to the workstation and analyzed. The right ventricular end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV) and ejection fraction (EF) were obtained in TomTec workstation, while the left ventricular end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV) and ejection fraction (EF) were obtained in QLab workstation. Results The right ventricular EDV(85.84±20.82]ml) and ESV (41.87±10.48]ml) were higher than left ventricular EDV (69.37±17.83]ml and ESV (26.46±8.26]ml), respectively (P<0.001), but right ventricular EF (50.94±5.57]%) was lower than left ventricular EF (61.97±6.48]%, P<0.001). There was no significant difference between left ventricular SV (42.91±11.72]ml) and right ventricular SV (43.96±12.15]ml, P=0.273). Correlations were found among the corresponding parameters of right and left ventricle. Conclusion RT-3DE is a feasible method to evaluate the volume and function of right and left ventricle. The corresponding parameters of right and left ventricle are all related.