实时三维超声心动图评价房间隔缺损右心室整体及节段收缩功能

目的探讨实时三维超声心动图(real-time three-dimensional echocardiography,RT-3DE)评价房间隔缺损患者右心室整体及节段收缩功能的可行性及准确性。方法使用RT-3DE采集27例房间隔缺损(atrial septal defect,ASD)患者和32例健康志愿者心脏全容积图像,应用Tomtec公司的Manual4D RV-Function CAP分析软件测量右心室整体及3节段收缩功能,得到右心室整体和节段舒张末期容积、收缩末期容积,射血分数,并通过软件自动生成右室节段容积-时间变化曲线。结果RT-3DE可以同步评价右心室整体及节段收缩功能。ASD患者的右室收缩功能下降(P=0.017),3节段中流出道部和小梁部的收缩功能下降最为明显(P=0.036,0.008),流入道部收缩功能下降无统计学意义(P=0.554)。结论RT-3DE可有效评价右室整体及节段收缩功能,对于房间隔缺损患者的手术治疗及预后评价有重要意义。     

实时三维超声心动图评价房间隔缺损患者右心室整体和节段容积及收缩功能

目的 运用实时三维超声心动图(RT3DE)分析房间隔缺损(ASD)患者右心室整体和节段容积及收缩功能,探讨RT3DE参数与超声心动图估测的肺动脉收缩压(PASP)、肺血管阻力(PVRe)及ASD内径(ASD-D)之间的相关性.方法 对22例ASD患者及22例正常对照者行常规超声心动图及RT3DE检查.应用TomTec软件定量分析右心室RT3DE图像,获得右心室整体及流入道、体部和流出道三个节段的舒张末容积(EDV)、收缩末容积(ESV)、每搏输出量(SV)、射血分数(EF)和节段容积达最小值时间(Tmsv)及其所占心动周期的百分率(Tmsv％),以Tms及Tmsv％的标准差(SD)和最大差(dif)为右心室收缩同步性参数.结果 与正常对照组相比,ASD组右心室整体及三个节段的EDV、ESV和SV均增大(P均＜0.001),右心室整体及三个节段的EF均降低(P均＜0.05),右心室节段容积和收缩功能变化程度不同.两组间右心室整体和各节段Tmsv、Tmsv％及右心室收缩同步性参数差异无统计学意义.右心室整体和流入道节段EDV、ESV及SV与ASD-D及PASP正相关(r=0.463～0.704,P均＜0.05),右心室整体EF与PVRe负相关(r=-0.477,P＜0.05).结论 ASD患者右心室整体及三个节段的容积增加、收缩功能减弱,右心室整体和流入道节段容积与右心室前负荷正相关,右心室整体收缩功能与后负荷程度负性相关.     

实时三维超声心动图定量测定先天性心脏病右心室功能的探索性研究

目的 评价实时三维超声心动图(RT-3DE)成像技术定量测定先天性心脏病(congenital heart diseases,CHD)患者右心室功能的可行性及有效性.方法 应用RT-3DE技术对64例CHD患者及34例正常人定量测定其右心室(RV)舒张末期容积(EDV)、收缩末期容积(ESV)、每搏输出量(SV)及射血分数(EF),同时与二维超声心动图(2DE)测定的右室功能相比较.结果 (1)RT-3DE所测右心室容积及SV与2DE超声所测值相关性良好(r=0.815～0.970,P<0.01),且高于2DE所测值,差异有统计学意义(P<0.05);右心室射血分数2DE与RT-3DE之间无显著性差异(P=0.300);(2)RT-3DE所测的房间隔缺损(ASD)患者右室ESV、EDV及SV较正常对照组增大且有统计学差别(P<0.05),右室EF较正常对照组降低且有统计学差异(P<0.05);(3)RT-3DE所测的室间隔缺损和/或动脉导管未闭(VSD/PDA)患者右室EDV与正常对照组之间无统计学差异(P>0.05),右室ESV较正常对照组增大,EF及SV则较正常对照组降低且均有统计学意义(P<0.05).结论 通过RT-3DE成像技术及Qlab软件分析,可为CHD患者右心室容积的测量及发现心室功能的变化情况,提供一种方便、无创而有效的新方法,是对2DE测定心功能的有效的补充.     

实时三维超声心动图评价正常人右心室节段容积和收缩功能的研究

目的运用实时三维超声心动图(RT3DE)方法分析正常人右心室节段容积和收缩功能。方法应用PHILIPS-iE33超声显像仪及匹配的X3-1探头对53名正常成年人进行常规超声心动图及RT3DE检查。应用TomTec软件定量分析右心室RT3DE图像,获得右心室整体及流入道、体部和流出道三个节段的舒张末容积(EDV)、收缩末容积(ESV)、每搏输出量(SV)、射血分数(EF),计算各节段容积达最小值时间(Tmsv)及其所占心动周期的百分率(Tmsv%)的标准差(SD)和最大差(dif)作为右心室收缩同步性参数。结果正常人男性组右心室体部、流出道及整体EDV及SV大于女性组(P均<0.05),其右心室三个节段及整体ESV均大于女性组(P均<0.05),流入道EF略低于女性组(P<0.05)。组内比较结果显示,正常人右心室流入道EDV和SV均大于流出道和体部(P均<0.05),节段EF值大小关系均为流入道>流出道>体部(P均<0.05),整体和三个节段Tmsv及Tmsv%之间均无显著差异。相关性分析结果显示,正常人右心室整体EDV与右心室舒张末期内径及面积呈正相关(P均<0.05),右心室整体ESV与右心室收缩末期内径及面积呈正相关(P均<0.05)。结论正常人右心室三个节段容积和收缩功能具有不同的特点,男性和女性右心室整体和节段容积及收缩功能存在差异,右心室节段收缩活动具有较高的同步性,RT3DE分析右心室节段容积和收缩功能具有潜在的应用价值。     

RT-3DE技术定量评估急性心肌梗死后血栓抽吸并介入治疗术后左室心功能改变

目的：运用实时三维超声心动图（RT-3DE）检测急性心肌梗死患者（AMI）血栓抽吸并PC1术后及单纯PCI术后左室整体和节段收缩功能的改变.方法：将纳入的55例实施PCI术的AMI患者根据是否于术前采用血栓抽吸分为血栓抽吸＋PCI组和单纯PCI组,运用RT-3DE检查两组患者,比较其术后7天及6月时两组患者整体和节段舒张末期容积（EDV 、rEDV）、整体和节段收缩末期容积（ESV、rESV）、整体和节段射血分数（EF、rEF）.并观察两组患者术后心肌梗死溶栓治疗临床试验（TIMI）3级血流发生率及心电图ST段回落百分比（STR）.结果：血栓抽吸并PCI术组中TIMI 3级、STR≥50％的患者比率较单纯PCI组高（P＜0.05）,血栓抽吸并PCI术组6月时EDV、ESV及rEDV、rESV较单纯PCI组减低,EF、rEF提高（P＜0.05）.另外术后6月时两组患者的△EDV、△EF与术后STR呈正相关.结论：AMI患者血栓抽吸合并PCI术较单纯PCI术更能够提高左室整体及节段心收缩恢复.RT-3DE可准确定量评价AMI患者介入治疗术后左室收缩功能的改变,同时AMI患者中远期△rEDV、△rEF与术后STR可以更好预测介入治疗术后微循环灌注程度及其中远期恢复状况.     

实时三维超声心动图评价肺动脉高压患者右心室整体和节段收缩功能

目的 应用实时三维超声心动图(real-time three-dimensional,RT-3DE)探讨肺动脉高压(pulmonary hypertension,PH)患者右心室整体和节段收缩功能的特征。方法 入选PH患者30例和健康对照者27例,采集心尖四腔观以右心室为主的全容积图像,使用TomTec软件定量分析获得右心室整体和流入道部、体部、流出道部3个节段的舒张末容积(EDV)、收缩末容积(ESV)、每博输出量(SV)和射血分数(EF),分析三维超声参数的组间差异及其与常规超声心动图参数的相关性。结果 PH组右心室整体及各节段局部EDV和ESV较正常对照组升高（均P＜0.05）,右心室整体和节段EF较正常对照组降低(均P ＜0.05)。右心室流入道节段EDV、SV及EF显著高于流出道和体部（均P＜0.05),右心室整体EF低于流入道节段而高于流出道和体部（均P ＜0.05)。PH组右心室整体和流入道节段EF与肺动脉收缩压及三尖瓣反流最大速度与肺动脉口血流时间速度积分比值呈显著负性相关（r= -0.611、-0.576,P＜0.001、P=0.001及r=-0.772、-0.721,P=0.002、P＜0.001）。结论PH患者右心室容积增大,右心室整体和节段收缩功能减退,右心室整体和节段收缩功能受损的程度与右心室后负荷增高程度密切相关。     

实时三维超声心动图对房间隔缺损在不同肺动脉收缩压下右室功能的研究

目的 探讨实时三维超声心动图(RT-3DE)成像技术在不同程度肺动脉收缩压(PASP)下,测定房间隔缺损(ASD)患者右室整体和节段收缩功能的可行性和准确性.方法 运用RT-3DE技术及Qlab分析软件,测定131例ASD患者与34例正常人的右室整体收缩功能(RVEF)和右室3节段( bodyEF、inflowEF、outflowEF)的局部收缩功能.结果 (1)与正常对照组相比,ASD伴中度和重度肺动脉高压组的RVEF降低明显(P均＜0.05).(2)正常对照组和ASD患者均以bodyEF最低(P均＜0.05).(3)三节段中,inflowEF最早出现降低(P＜0.05).(4)正常对照组和ASD患者中,outflowEF与RVEF相比均无统计学差异(P均＜0.05).结论 通过RT-3DE成像技术及Qlab软件分析,可快捷、准确、无创地测定房间隔缺损患者右心室整体及节段的收缩功能变化情况,并早期发现不同肺动脉收缩压对右心室功能的影响.     

实时三维超声心动图评价法洛四联症患者右心室收缩功能的研究

目的：应用实时三维超声心动图（RT-3DE）研究法洛四联症（TOF）患者右心室收缩功能的改变。方法：应用RT-3DE及二维方法测量29例TOF患者及10例正常儿童的右心室舒张末期容积（RVEDV）、收缩末期容积（RVESV）、每搏量（RVSV）及射血分数（RVEF）。结果：二维及RT-3DE均测得29例患者中41%术前RVEF低于50%,两种方法测得的TOF患者术前RVEDV及RVESV比较有统计学差异,RVSV及RVEF无统计学差异。TOF患者三维右心室容积曲线（RVVC）幅度较正常人减小,收缩峰值后移。结论：RT-3DE能通过测量右室容积及射血分数来评价TOF患者右室功能的变化。     

实时三维超声心动图定量评价急性前壁心肌梗死患者左室整体和节段心功能

目的探讨实时三维超声心动图（RT3DE）检测急性前壁心肌梗死患者整体和节段心功能的临床价值。方法运用RT3DE对20例急性前壁心肌梗死患者和41例正常人进行检查,脱机软件分析得出左室整体和17节段的容积-时间曲线,比较两组的整体和节段舒张末期容积（EDV、rEDV）、收缩末期容积（ESV、rESV）、射血分数（EF、rEF）及节段-整体射血分数（rgEF）。结果急性前壁心梗组整体EDV、ESV及梗死区域、邻近梗死区域的rEDV、rESV较对照组增大,整体EF值及其rEF、rgEF减小（P〈0.05）,远离梗死区域无差异（P〉0.05）。结论RT3DE能客观评价急性前壁心梗患者左室整体和节段心功能,是一项能运用于临床的准确、可行的新技术。     

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.     

Quantification of regional volume and systolic function of the left ventricle by real-time three-dimensional echocardiography

Real-time three-dimensional (3D) echocardiography (RT-3DE) provides a unique technique to evaluate left ventricular regional function in a 3D format. We aimed to explore whether the left ventricular segmental volume and systolic function is uniform and to establish normal values of volume and systolic function parameters of 16 regions in healthy subjects. RT-3DE was performed in 41 normal subjects and four-dimensional (4D)-left ventricle (LV) analysis software and a TomTec workstation were used to analyze data for regional end-diastolic volume (EDV(R)), regional end-systolic volume (ESV(R)), regional stroke volume (SV(R)), regional ejection fraction (EF(R)), ratio of SV(R) to global SV (SV(R/G)) and ratio of SV(R) to global EDV (EF(R/G)). All regional volume and systolic function parameters were not uniform among the left ventricular walls. They all increased in the order of inferior, posterior, lateral, septal, anterior and antero-septal walls with an increasing trend from the apical, middle to basal segments. The systolic function (EF(R), SV(R/G) and EF(R/G)) of the anterior and antero-septal walls was significantly higher than that of the lateral, inferior and posterior walls. And the intra- and interobserver variability for EDV(R), ESV(R), SV(R/G) and EF(R/G) ranged from 2.9% to 5.8%. In conclusion, the regional volume and systolic function of the left ventricle is not uniform and, therefore, a normal left ventricle cannot be regarded as a symmetric model for assessing the regional systolic function. This information may improve the accuracy of RT-3DE techniques in the assessment of the left ventricular regional function. (E-mail: zhangyun@sdu.edu.cn and yaogh@yahoo.com).     

实时三维超声心动图评价正常儿童左、右心室容积及收缩功能

目的应用实时三维超声心动图(RT-3DE)比较正常儿童左、右心室容积及收缩功能。方法以RT-3DE采集192名年龄2个月～13岁8个月正常儿童的左、右心室的全容积数据,并按年龄分为Ⅰ～Ⅴ组。应用TomTec LV-A-nalysis及RV-function软件分析左、右心室舒张末期容积(EDV)、收缩末期容积(ESV),每搏输出量(SV),心室射血分数(EF)及心室容积收缩峰值速率(PSVR),对各年龄组左、右心室上述指标进行比较;同时对EDV与年龄及体格指标进行相关性和曲线估计回归分析。结果各年龄组中,RT-3DE测量左、右心室EDV差异均无统计学意义(P均>0.05),左、右心室ESV、SV及PSVR在部分年龄组中差异无统计学意义(P均>0.05),而左心室EF高于右心室,其在5个年龄组中差异均有统计学意义(P均<0.05)。左、右心室EDV与年龄、身高、体质量、体表面积呈正相关(r均>0.85,P均<0.001),曲线估计回归分析表明其相关性均以幂模式拟合最佳,其中与体表面积拟合的曲线最佳,回归方程分别为左心室EDV=38.58BSA1.41(r2=0.89,P<0.001)、右心室EDV=37.46BSA1.29(r2=0.85,P<0.001)。结论RT-3DE测量正常儿童左、右心室舒张末期容积相近,两侧心室存在泵血功能平衡,心室容积随年龄增长呈指数模式增长。     

实时三维超声心动图评价正常儿童右心室整体及局部容积和收缩功能

目的 应用实时三维超声心动图(RT-3DE)评价不同年龄正常儿童右室整体及局部容积和收缩功能.方法 192例正常儿童按年龄分为5组:Ⅰ组,＜1岁,32例;Ⅱ组,≥1岁-＜3岁,46例;Ⅲ组,≥3岁-＜6岁,36例;Ⅳ组,≥6岁-＜9岁,41例;Ⅴ组,≥9岁-＜14岁,37例.应用RT-3DE于心尖偏胸骨旁四腔心采集右室全容积声像图,使用TomTec RV-Function软件分析右室整体和局部(包括流入道、流出道、心尖肌小梁部)舒张末期容积(EDV)、收缩末期容积(ESV)及射血分数(EF),计算各局部EDV占右室EDV的比率,对右室三局部容积和收缩功能进行相互比较,并对各年龄组右室整体及局部EF和各局部所占右室容积比率进行相互比较;同时对右室整体和局部EDV与年龄及体格指标进行相关性和曲线估计回归分析.结果 在右室三局部容积和收缩功能的相互比较中:右室流入道EDV及EF均大于流出道、心尖肌小梁部(P＜0.05),流出道EDV与心尖肌小梁部差异无统计学意义(P＞0.05),但流出道EF大于心尖肌小梁部(P＜0.05);各年龄组间右室整体及局部EF差异无统计学意义(P＞0.12);三局部所占右室容积比率在各年龄组间差异无统计学意义(P＞0.58).右室整体及局部EDV与年龄、身高、体质量、体表面积(BSA)呈显著正相关(r＞0.77,P=0.000),其中与体表面积的相关性最显著(r＞0.83,P=0.000),曲线估计分析表明右室整体及局部EDV与各体格指标之间的回归模型以幂模型最佳,其中与体表面积建立的回归模型最佳.结论 在右室三局部中,右室流入道和流出道的容积和收缩功能是右室泵血功能的重要组成部分,右室容积的增长在儿童时期并非随年龄体格指标呈线性增长,而以指数模式增长.

Abstract：

Objective To evaluate right ventricular(RV) global and regional volume and systolic function by real-time three-dimensional echocardiography (RT-3DE) in normal children with different age.Methods One hundred and ninty-two normal children were divided into five groups by age:group Ⅰ,＜1 years old,32 cases;group Ⅱ,≥1 years old-＜3 years old,46 cases;group Ⅲ,≥3 years old-＜6 years old,36 cases;group Ⅳ,≥6 years old-＜9 years old,41 cases;group Ⅴ,≥9 years old-＜14 years old,37 cases.Full volume imaging of RV was obtained at the parasternal four-chamber view near the apex by RT-3DE.RT-3DE data set were analyzed off-line by TomTec RV-Function.RV were divided into three parts:inflow,body,outflow.The measurements were including RV global and regional end-diastolic volume (EDV),end-systolic volume (ESV),ejection fraction (EF) and the ratio of regional parts EDV to RVEDV. The volume and systolic function were compared in three regional parts.RV global and regional parts EF and the ratio of regional parts EDV to RVEDV were also compared in five age groups.Correlation analysis and curve estimation were studied on RV global and regional EDV with age and physical development indexes.Results In the comparison of three regional parts:inflow EDV and EF were higher than outflow and body parts (P＜0.05).No significant different was found between outflow EDV and body EDV (P＞0.05),however,outflow EF was significant higher than body EF(P＜0.05).The comparison of RV global and regional EF in five age groups were no statistical different (P＞0.12). The ratio of regional parts EDV to RVEDV remained constant in five age groups(P＞0.58).Correlation analysis showed the global and regional RV volume were strongly correlated with age,height,weight and BSA (r＞0.77,P=0.000).The best correlation was found with BSA (r＞0.83,P=0.000).Curve estimation demonstrated that the relationship of RV global and regional EDV with age and physical development indexes could be best expressed by power model,the best matched model were found with BSA.Conclusions Among three regional parts of RV,inflow and outflow parts volume contraction were the two main contribution factors for RV function.In childhood RV volume didn't increase linearly with age and physical development indexes,but in an exponential model.     

实时三维超声心动图定量冠心病、扩张型心肌病心房和心室容积及功能的研究

目的应用实时三维超声心动图(RT-3DE)定量评价冠心病、扩张型心肌病患者左心室、左心房、右心室和右心房容积及收缩功能。方法在24例正常人、16例扩张性心肌病和27例心肌梗死患者中,应用实时三维超声心动图获取各房室全容积三维图像,分别应用2、4、8平面方法测量各房室收缩末期容积(ESV)、舒张末期容积(EDV)和射血分数(EF),并与二维超声心动图(2DE)Simpson法和声学定量(AQ)技术测值比较。结果在扩张性心肌病和心肌梗死患者中,2DE、AQ技术和RT-3DE2平面法测量的左、右心房和左、右心室ESV、EDV明显低于RT-3DE4平面法、8平面法测值(P<0.05);各种方法检测的EF值差异无统计学意义(P>0.05)。2DE、AQ技术和RT-3DE检测结果均显示扩张性心肌病、心肌梗死患者各房室ESV、EDV均明显大于正常组(P<0.05),EF明显低于正常组(P<0.05)。结论应用实时三维超声心动图能显示心腔立体结构,测量各心腔容积,评价心脏功能。     

实时三维超声心动图容积时间曲线评价左心室整体收缩和舒张功能

目的 应用实时三维超声心动图(RT-3DE)容积-时间曲线(VTC)定量评价左心室整体收缩和舒张功能.方法 98例研究对象分为4组:A组,正常人28例;B组,高血压病患者24例;C组,冠心病患者24例;D组,扩张性心肌病22例.对所有研究对象进行RT-3DE检查,采集全容积三维图像,应用Qlab分析软件对三维数据库进行分析,得到左室整体和17节段容积时间曲线,测量舒张末容积(EDV)、收缩末容积(ESV)和左室射血分数(EF),并计算峰值射血率(PER)、舒张早期峰值充盈率(PFR)、PER/EDV、PFR/EDV.结果 B、C、D组EDV、ESV显著大于A组,PFR/EDV显著小于A组(均P＜0.05);C、D组EF、PER/EDV显著小于A组(均P＜0.05).PER/EDV与EF有较好的相关性(r=0.694,P＜0.05).A组17节段VTC排列有序,收缩期与舒张早期形态对称;B、C、D 3组VTC形态与A组有明显不同,收缩期与舒张早期不对称.结论 实时三维超声心动图容积时间曲线可客观评价左室收缩和舒张功能,PER/EDV、PFR/EDV可作为定量评价左室收缩功能和舒张功能的有效指标.     

How Many Planes Are Required to Get an Accurate and Timesaving Measurement of Left Ventricular Volume and Function by Real-Time Three-Dimensional Echocardiography in Acute Myocardial Infarction?

To derive the optimal cutting planes of real-time 3-D echocardiography (RT-3DE) for measuring left ventricular volume and ejection fraction (EF) in the presence of left ventricular regional wall motion abnormalities, 14 open-chest dogs were studied with RT-3DE full volume imaging and 2-D echocardiography (2DE) after left anterior descending coronary arteries were occluded for 90 min. Left ventricular end diastolic volume (EDV), end systolic volume (ESV), stroke volume (SV) and EF were measured off-line with 2DE and RT-3DE (2-, 4- and 8-plane) methods. The autopsy EDV was estimated by the volume of saline solution injected into the excised heart and served as the reference volume (RefV) for comparison with EDV measured by 2DE and RT-3DE. Agreement analysis was performed according to the method of Bland and Altman. There were excellent correlations between 2DE, RT-3DE (2-plane) and RT-3DE (4-plane) methods on one hand, and RT-3DE (8-plane) method on the other in the measurements of EDV, ESV and SV (r = 0.84-0.99). However, 2DE and RT-3DE (2-plane) measurements significantly underestimated RT-3DE (8-plane) (p < 0.01), whereas no significant differences between RT-3DE (4-plane) and RT-3DE (8-plane) were found in terms of EDV, ESV and SV measurements. The values of EF determined by 2DE, RT-3DE (2-plane) and RT-3DE (4-plane) methods correlated highly with that by RT-3DE (8-plane) (r = 0.82-0.98) and there was no significant difference between the two measurements. EDV values determined by 2DE, RT-3DE (2-plane), RT-3DE (4-plane) and RT-3DE (8-plane) correlated highly with RefV (r = 0.84, r = 0.92, r = 0.94 and r = 0.97, respectively) and there was no significant difference between RefV and EDV by RT-3DE (4-plane) and RT-3DE (8-plane). In contrast, EDV measured by 2DE and RT-3DE (2-plane) methods underestimated RefV significantly (p < 0.01). In conclusion, RT-3DE allows reliable and reproducible measurement of left ventricular volume and EF, even in the presence of left ventricular regional wall motion abnormalities. RT-3DE (4-plane) is the method of choice for an accurate and timesaving quantification of left ventricular volume and function.     

实时三维超声心动图评价中晚孕期正常胎儿右心室功能

目的应用全容积实时三维超声心动图评价正常胎儿右心室功能。方法对109例孕妇的正常胎儿进行超声心动图检查．应用Shimazaki法、双平面Simpson法以及全容积实时三维超声心动图方法（RT-3DE）来评估胎儿右室舒张末期容积（EDV）、收缩末期容积（ESV）、每搏输出量（SV）、射血分数（EF）及心输出量（CO）,并比较三种方法获得的数值结果。结果三种方法比较,EDV、ESV、SV、CO值的差异均有统计学意义（F=31．22、23．30、31．67、32．61。P均〈0．05）,EF值的差异无统计学意义（F=1．56,P〉0．05）。RT-3DE法、双平面Simpson法与Shimazaki法比较,除EF值外,胎儿EDV、ESV、SV、CO值的差异均有统计学意义（t分别=6．57、5．64、6．66、6．76;7．10、6．25、7．11、7．21,P均〈0．05）;RT-3DE法与Simpson法比较,胎儿EDV、ESV、SV、CO的差异无统计学意义（t分别=0．53、0．61、0．44、0．45．P均〉0．05）。两个观察者一致性检验,RT-3DE法的Kappa值要高ff-Simpson法的Kappa值。结论全容积实时三维超声心动图能够全面、整体地评价胎儿右心室心功能。