3de

The end diastolic and end systolic volume ( EDV and ESV ) of left atrial appendage ( LAA ) were measured with the disk summation method of 3DE .

应用三维超声心动图采取圆盘总和方法（disksummation）测定左心耳舒张末期容量（EDV）和左心耳收缩末期容量（ESV）。

During application of RT 3DE , distance measurement , color and pulse Doppler techniques were still not allowed .

术中实时测量三维距离，血流及多普勒技术的应用还受到技术制约。

Conclusion 3DE can provide more accurate quantitative diagnosis in CTD VSD than 2DE .

结论3DE可作为CTDVSD定量分析的又一无创手段，能提供较2DE更准确的定量诊断。

Objective To determine the feasibility of three dimensional echocardiography ( 3DE ) in assessment of mechanical prosthetic valve areas .

目的观察三维超声心动图（3DE）测定机械瓣瓣口面积的可行性。

Results More direct and accurate LV function informations were obtained by 3DE calculation , because not any assumption was needed .

结果因用3DE重建图象来计算心脏容积等参数时无需进行任何假设，故能获得更直观和精确的左室容量信息。

RT 3DE could provide more information about the position , size and sufficient anatomic relationship of ASD than those of 2 dimensional echocardiography .

RT-3DE在房间隔缺损的部位，大小，相对空间毗邻关系的判定均可获得比二维超声更丰富的数据信息，可靠性强。

Objective To evaluate the feasibility and accuracy of three-dimensional echocardiography ( 3DE ) for quantify-ing ventricular volume and wall mass in an experimental study in vitro .

目的评价三维超声心动图（3DE）估测心室容量和室壁质量的可行性和准确性。

Objective : The aim of this study was to detect the diagnostic values and correlativity of two and three dimensional echocardiography ( 3DE ) on dilated cardiomyopathy .

目的：探讨二维、三维超声心动图（3DE）检测扩张型心肌病左室心肌重量及收缩功能的诊断价值及相关性。

RT ; 3DE provides a new method of observing left atrial volumes and functions and evaluating more comprehensively and accurately the left ventricular diastolic dysfunction in coronary heart disease .

RT-3DE为观察冠心病左房容量与功能的变化提供了新的检测方法。

The mitral valve area ( MVA ) was measured by three dimensional echocardiography ( 3DE ) in 27 patients with mitral valve stenosis ( MS ) before operation .

应用超声心动图三维重建技术，对27例二尖瓣狭窄患者进行了手术前检查，测量二尖瓣口的面积MVA（3DE）（cm2），与外科手术实测的二尖瓣口面积MVA（op）。

Conclusion : The accuracy of calculating left ventricular volume by 3DE is better than by 2DE in acute myocardial infarction , especially in the systolic period when cardiac cavity shape has changed .

结论：心肌梗塞后，尤其是收缩期心腔几何形状发生较大变化时，3DE对于心室容积测量的精确性优于2DE。

However , the measurements of VSD short diameter with 3DE was close to those with angiocardiography , and there was no significant difference ( P > 0.05 ) between them .

3DEVSD短径测值与造影测值相接近，两者比较无统计学差异（P>0.05）。

Objective To evaluate the possibility and accuracy of live three-dimensional echocardiography ( Live 3DE ) in the assessment of the prosthetic valve apparatus 's configuration and function in patients with prosthetic valves replacement .

目的评价实时三维超声（Live3DE）技术观察人工瓣膜形态和功能的可行性和准确性。

Objective To evaluate the accuracy and clinical value of transthoracic three-dimensional echocardiographic ( 3DE ) quantitative analysis in ventricular septal defect ( VSD ) of conotruncal defects ( CTD ) .

目的探讨三维超声心动图（3DE）在圆锥动脉干畸形（CTD）室间隔缺损（VSD）定量研究中的准确性及其临床意义。

Objective To establish the standardized sectional diagnostic method of pathological morphology of congenital heart disease ( CHD ) with real-time three-dimensional echocardiography ( 3DE ) and evaluate initially its value of clinical application in pediatrics .

目的探索建立小儿先天性心脏病（CHD）实时三维超声（3DE）病理形态学剖视诊断方法，并评价其临床应用价值。

Good correlation was obtained when the area , maximum and minimum diameter of ASD measured on 3DE IESS were compared with of independently measured anatomic ones ( r > 0.95 , P < 0.01 ) .

测量三维重建并虚拟显示后的ASD面积、最大径和最小径，测得数据与实测值高度相关（r>0.95，P<0.01）。

Objective : To compare the sensitivity and the relative accuracy of M mode ( MME ), Two dimensional ( 2DE ) and three dimensional ( 3DE ) echocardiography in detecting left ventricular hypertrophy ( LVH ) .

目的：对比M型、二维和三维超声心动图三种技术诊断左室肥厚的敏感性和相对准确性。

Comparing the EF values of myocarditis from ME , 2DE and 3DE and finding 3DE was the most sensitive ( p < 0.01 ), we suggest the value of 3DE could be a useful value in appraising the LV function of viral myocarditis ;

超声在ME、2DE和3DE三种方法对心肌炎组EF测值的对比中以3DE法最敏感（P<0.01），建议临床上可将3DE的EP测值作为对心肌炎左心功能评价的参考指标之一；

Methods : Sizes , shapes and sites of ASD before operation and occluder devices after closure operation were visualized and detected by 3DE , two-dimensional echocardiography ( 2DE ) in 15 ASD patients . Measurements were compared between 3DE , 2DE and operation .

方法：对15例ASD患者术前进行缺损大小、形态、位置，术后封堵器的形态、位置、塑型及大小的RT-3DE观察，并与二维超声心动图（2DE）和手术结果进行比较。

Objective : To evaluate the value of transthoracic echocardiography ( TTE ), 3 dimensional echocardiography ( 3DE ), transesophageal echocardiography ( TEE ), and right upper pulmonary venogram for measurement of the diameter of atrial septal defect ( ASD ) in transcatheter interventions .

目的：评价经胸超声心动图（TTE）、三维超声心动图（3DE）、经食管超声心动图（TEE）及心导管造影在介入治疗中测量房间隔缺损直径（ASD）的应用价值。

The LV end diastolic volume ( LVEDV ) and end systolic volume ( LVESV ) were measured from each 3DE data set with the summation of disks method , and stroke volume ( SV ) and ejection fraction ( LVEF ) was derived from those .

同时记录采集时间。采用圆盘总和法（disksummation）测定左室舒张末期容积（LVEDV）和左室收缩末期容积（LVESV），得出每搏输出量（SV）及左室射血分数（LVEF）。

RESULTS : RT-3DE could clearly visualize the device 's double-disc like shapes and sites in 3 dimensions . There was no significant difference between the measurements of occluder waist sizes with 3DE and actual ones ( 27 ± 5mm vs 26 ± 5 mm , P > 0.05 ) .

结果：RT-3DE显示封堵器呈双盘状，测得封堵器伞腰直径为27±5mm，与实际封堵器大小（26±5mm）比较无显著差异（P>0.05）；