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实时三维
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  real-time three-dimensional
    Objective To evaluate the feasibility and accuracy of real-time three-dimensional echocardiography(RT-3DE)for quantifying left ventricular volume(LVV)and left ventricular mass(LVM).
    目的探讨实时三维超声心动图(RT-3DE)测量左室容积及心肌质量的可行性及准确性。
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    Objective To evaluate changes of left ventricular volume of stunned and infarcted myocardium in canine models during dobutamine stress echocardiography(DSE) by real-time three-dimensional echocardiography(RT-3DE).
    目的应用实时三维超声心动图(RT-3DE)定量评价犬多巴酚丁胺(Dob)负荷试验(DSE)中左心室容积的变化。
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    Objective To investigate The method and feasibility of analysing mitral annulus geometry via real-time three-dimensional echocardiography (RT-3DE).
    目的探讨实时三维超声心动图(RT-3DE)研究二尖瓣环立体形态的方法和可行性。
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    Clinical Study on the Evaluation of Right Ventricular Systolic Function by Real-Time Three-Dimensional Echocardiography
    实时三维超声心动图评价右室收缩功能的初步临床研究
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    Study on Coronary Sinus Structures by Real-time Three-dimensional Echocardiography
    冠状静脉窦的实时三维超声心动图研究
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  “实时三维”译为未确定词的双语例句
    pesudonormal/restrictive diastolic function group (15 cases,pesudonormal filling pattern, 110;restrictive filling pattern, E∶A>2, E/Ea>15). LA diameter, E/A, E/Ea, left ventricular ejection fraction (LVEF) were compared in the different groups. LA emptying fraction (LAEF) was measured with RT-3DE.
    在比较左心房内径(LA-D)、E/A、E/Ea、左心室射血分数(LVEF)等参数基础上,采用实时三维超声心动图(RT-3DE)检测左心房总体排空分数(LAEF),应用TDI检测左心房游离壁(LA)及房间隔(IAS)舒张晚期峰值速度(Va)及收缩期峰值应变(S),并对3组检测数据进行比较分析。
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    Real-time three dimensional echocardiography in evaluation of left ventricular volume and ejection fraction in patients with aneurysm combined with myocardial infarction
    实时三维超声心动图评价心肌梗死合并室壁瘤患者左心室容积及射血分数
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    An experimental study of real-time three dimensional echocardiography for quantifying right ventricular volume
    应用实时三维超声心动图测量右室容积的实验研究
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    Conclusion Right ventricular function in CHD patients with RV dilatation could be evaluated by RT-3DE, which had great valve in clinical practice.
    结论 实时三维超声心动图能通过测量正常人与先天性心脏病右室扩大病人的右室容积、射血分数及右室质量来评价先天性心脏病右室扩大病人的右室功能。
短句来源
    There were good correlation between RT-3DE measurements and anatomic view. The correlation coefficents were 0.885, 0.808, 0.834, 0.796 respectively(P<0.05).
    结果:实时三维超声心动图测量二尖瓣环的各项测值与实际解剖标本之间高度一致,并且高度相关,相关系数分别为0.885,0.808,0.834,0.796(P<0.05)。
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  real-time three-dimensional
The availability of real-time three-dimensional echocardiography has brought this technique into clinical practice.
      
Real-Time Three-Dimensional Echocardiography for Improved Evaluation of Diastolic Function Using Volume-Time Curves
      
The capability to perform real-time three-dimensional (3-D) imaging has vastly strengthened the already established role of echocardiography.
      
The optimal plane for measurement of the right ventricular (RV) volumes by real-time three-dimensional echocardiography (RT3DE) was determined and the feasibility and accuracy of RT3DE in studying RV systolic function was assessed.
      
Real-time three-dimensional color doppler flow imaging: An improved technique for quantitative analysis of aortic regurgitation
      
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Objective:To determine the relationship of tricuspid annulus(TA)motion and right ventricular(RV)function using real time three dimensional echocardiography(3DE) Methods:3DE data sets(Volumetrics,Inc)were acquired from 14 normal volunteers,7 orthotopic cardiac recipients,3 dilated cardiomyopathy,2 coronary disease,and 1 patient with congenital heart disease After transfered to a computer,3DE data was segmented into 9 rotational apical planes(20° apart) TA location was identified in spatial(x,y,z)coordinates...

Objective:To determine the relationship of tricuspid annulus(TA)motion and right ventricular(RV)function using real time three dimensional echocardiography(3DE) Methods:3DE data sets(Volumetrics,Inc)were acquired from 14 normal volunteers,7 orthotopic cardiac recipients,3 dilated cardiomyopathy,2 coronary disease,and 1 patient with congenital heart disease After transfered to a computer,3DE data was segmented into 9 rotational apical planes(20° apart) TA location was identified in spatial(x,y,z)coordinates by viewing the tricuspid leaflet hinge points in each plane at end diastole and end systole,We calculated the change in annular area,circumference,and motion along the long axis of the RV C plane from 3DE was used to measure RV ejection fraction(EF)which ranged from 21 to 63% Results:TA motion averaged 15mm,TA area change 17 7%,and TA circumference change 33 3% RV EF correlated well with TA motion(y=2 2x+15 5, r =0 88, P <0 01)but did not correlate with change in TA area or circumference Conclusion:TA motion by realtime 3D echo is a useful method to assess RV ejection fraction

目的 :应用实时三维超声心动图检查分析三尖瓣环运动和右室收缩功能的关系。方法 :2 7例包括健康志愿者 1 4例 ,接受心脏移植术后患者 7例 ,扩张型心肌病 3例 ,冠心病 2例 ,先天性心脏病 1例 ,所有实验对象均接受三维超声检查。将采集的实时三维图像转移至计算机图像分析仪上。从心尖将右心室三维图像沿右室长轴分成 9个切面 (每个切面间隔 2 0度 )。在舒张末期及收缩末期分别标定出三尖瓣环三维空间位置。计算机描绘并测量出不同时期三尖瓣环面积、周长及运动距离。利用实时三维超声的 C—平面 ,我们测量出三维超声的右心室舒张末期及收缩末期容积 ,并计算出右室射血分数。结果 :右心室射血分数平均为 48% (2 1 %~ 6 3% )。三尖瓣环空间运动距离为 1 5 mm。三尖瓣环面积改变为 1 7.7% ,周长改变为 33.3%。右室射血分数与三尖瓣环运动距离有很好的相关性 (y=2 .2 x+1 5 .5 ,r=0 .88,P<0 .0 1 ) ,但与瓣环的面积及周长改变无关。结论 :用三尖瓣环运动距离来评价右室收缩功能是一种有用的方法。

Objective Th e aim of this study is to assess the cli nical efficacy of electroanatomically gu ided mapping and radiofrequency ablation under Carto system for idiopathic ventr icular tachycardia(IVT)with com parison to conventional method Metho ds Twenty five patients with IVT were e nrolled into this study Ten cases who un derwent catheter ablation under the guid e of Carto system were assigned as the C arto group,while 15 patients who underwe nt conv entional mapping and ablation as the con trol group...

Objective Th e aim of this study is to assess the cli nical efficacy of electroanatomically gu ided mapping and radiofrequency ablation under Carto system for idiopathic ventr icular tachycardia(IVT)with com parison to conventional method Metho ds Twenty five patients with IVT were e nrolled into this study Ten cases who un derwent catheter ablation under the guid e of Carto system were assigned as the C arto group,while 15 patients who underwe nt conv entional mapping and ablation as the con trol group The procedural and fluoroscop ic time,the success rate,the number of e nergy application and the complications were compared between these two groups Results All 10 patients( 6 ca ses in left ventricle,4 cases in right v entricle)in Carto group had instan eous success ablation In the control group,9 and 6 cases originated from left ventric le and right ventricle respectively,the success rate was 87%(13 cases), one VT ori ginated from right ventricular apex and one left ventricular VT failed to cathet er ablation Comparing the Carto group with the control group,the procedure tim e had no significant difference[ (106±24)min vs(98±19)*!min,P>0 05],but th e fluoroscopic operation time shortened significantly[ (10±7)*!min vs(22±15)*!m in,P<0 0 1] and the number of energy applica tion reduced[(2±2) vs (4±5)[ BFQ],P<0 05] No complication occured in both groups After the follow up of 3~15 months,no recurrence was observed. No complication occured in both groups After the follow up of 3~15 months,no recurrence was observed. Conclusion This s tudy suggests that electroanatomically guided mapping and ablation is a safe and efficient me thod for patient with IVT The Carto elec troanatomical mapping system displays re al time three dimensional chamber struct ure with electrical information related to signal amplitude and activation time It is helpful to shorten fluoroscopic ti me and to reduce the number of energy ap plication

目的 Carto系统可进行电解剖标测 ,显示心腔三维解剖结构。本研究通过Carto系统与常规标测方法指导消融治疗特发性室性心动过速 (室速 )的比较 ,评价其临床应用价值。方法  2 5例特发性室速患者 ,均未发现器质性心脏病。 10例应用Carto系统在相关心室标测 ,显示心室三维电激动图并指导消融 ,作为Carto组。另 15例在X线下常规标测和消融 ,作为常规方法组。比较两组的手术时间、曝光时间及放电次数、消融成功率、并发症和随访结果。结果 Carto组中有 6例左心室室速 ,4例右心室室速 ,均消融成功。常规方法组中 ,起源于左心室和右心室的室速分别为 9例和 6例 ,13例消融成功 ,成功率 87% ,1例右心室心尖部室速和 1例左心室室速不成功。Carto组与常规方法组相比较 ,手术时间无明显延长 [(10 6± 2 4)minvs (98± 19)min ,P >0 0 5 ],曝光时间缩短 [(10± 7)minvs(2 2± 15 )min ,P <0 0 1],放电次数减少 [(2± 2 )次vs(4± 5 )次 ,P <0 0 5 ]。两组均无并发症。随访 3~ 15个月 ,无复发...

目的 Carto系统可进行电解剖标测 ,显示心腔三维解剖结构。本研究通过Carto系统与常规标测方法指导消融治疗特发性室性心动过速 (室速 )的比较 ,评价其临床应用价值。方法  2 5例特发性室速患者 ,均未发现器质性心脏病。 10例应用Carto系统在相关心室标测 ,显示心室三维电激动图并指导消融 ,作为Carto组。另 15例在X线下常规标测和消融 ,作为常规方法组。比较两组的手术时间、曝光时间及放电次数、消融成功率、并发症和随访结果。结果 Carto组中有 6例左心室室速 ,4例右心室室速 ,均消融成功。常规方法组中 ,起源于左心室和右心室的室速分别为 9例和 6例 ,13例消融成功 ,成功率 87% ,1例右心室心尖部室速和 1例左心室室速不成功。Carto组与常规方法组相比较 ,手术时间无明显延长 [(10 6± 2 4)minvs (98± 19)min ,P >0 0 5 ],曝光时间缩短 [(10± 7)minvs(2 2± 15 )min ,P <0 0 1],放电次数减少 [(2± 2 )次vs(4± 5 )次 ,P <0 0 5 ]。两组均无并发症。随访 3~ 15个月 ,无复发病例。结论 本研究显示应用Carto系统标测和消融特发性室速安全有效 ,可实时三维重建心腔结构 ,附以电生理信息 ,较常规方法X线透视下定位准确可靠 ,明显缩短曝光时间 ,并通过其导航定位记忆功能 ,减少放电次数

Objective:To explore the feasibility and the value of real time three dimensional echocardiography (RT3DE) in quantative area evaluation of atrial septal defect(ASD) and ventricular septal defect(VSD).Methods:Twenty patients with ASD and/or VSD were examined with RT3DE Three dimensional image data base was post processed using 3D work station The results were compared with those measured by two dimensional echocardiography and surgery results.Results:RT3DE produced novel views of congenital heart defects...

Objective:To explore the feasibility and the value of real time three dimensional echocardiography (RT3DE) in quantative area evaluation of atrial septal defect(ASD) and ventricular septal defect(VSD).Methods:Twenty patients with ASD and/or VSD were examined with RT3DE Three dimensional image data base was post processed using 3D work station The results were compared with those measured by two dimensional echocardiography and surgery results.Results:RT3DE produced novel views of congenital heart defects and offered improved quantification of defect areas The areas obtained from 3DE have better correlation with surgery results than the diameter measured in 2DE( r =0 78 vs r =0 91).Conclusions:RT3DE offers additional special information in congenital heart disease without extending examining time and permits quantitative recording septal defect dynamics Echocardiography has important applied potentiality in clinical field.

目的 :探讨实时三维超声心动图测量房、室间隔缺损面积的可行性和应用价值。方法 :应用实时三维超声诊断仪获取 2 0例先天性房间隔和 /或室间隔缺损患者的三维数据库 ,利用三维数据工作站对缺损面积的大小进行测量分析 ,部分病例的三维测量值与二维超声测量值及手术结果对照。结果 :实时三维成像能以多种视角观察间隔缺损的全貌并可对缺损面积进行三维测量 ,同二维超声所测直径相比 ,三维超声测量结果与手术结果具有更好的相关性 (r=0 .78vs r=0 .91 )。结论 :实时三维超声可显示房室间隔缺损的整体形态 ,可对缺损面积进行准确的定量分析 ,具有重要的临床应用潜力

 
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