三维超声

方法用二维及三维超声观察41次介入操作中穿刺针杆及针尖并判断穿刺针与病灶的位置关系。

Methods In 41 procedures , visualization level of applicator tips and shafts , as well as position relationship between applicators and lesions were analyzed with two dimensional ultrasonography ( 2DUS ) and 3DUS .

结果三维超声的伪像可分为以下类型：①系统校正不准所致的伪像；

Results The artifacts in 3DUS could be classified as following : ① Artifacts due to incorrect system calibration ;

Voxel模型动态三维超声重建定量测量左室壁心肌重量

Quantitative Measurement of Left Ventricular Mass by Dynamic Three dimensional Voxel Imaging

目的探讨VanPraagh节段分析法在实时三维超声心动图技术（Real-TimeThree-dimensionalEchocardiography，RT3DE）诊断复杂型先心病中的应用价值。

Objective To evaluate van praagh segmental analysis in the diagnosis of complex congenital heart diseases using real-time three-dimensional echocardiography ( RT-3DE ) .

目的研究乳腺肿瘤三维超声血管容积指数（VI）与病理微血管密度（MVD）的相关性。

Objective To determine the relationship between three-dimensional ultrasound vascularity volume index ( VI ) and pathologic microvessel density ( MVD ) of breast masses .

经静脉注射新型声学造影剂和三维超声观察兔VX2肝癌的实验研究

Experimental study of rabbit VX_2 hepatic tumors by intravenous contrast enhancement and three-dimensional ultrasound

目的应用三维超声心动图（3-DE）初步评价房间隔缺损（ASD）面积变化率的临床意义。

Objective Three-dimensional echocardiography ( 3-DE ) was applied to measure ASD area change percentage .

用法福尔质量加权平均N-S方程及两方程湍流模型求解三维超声速平板湍流边界层流动；

The mass-weight averaging N-S equations are adopted as the governing equations of flow , and a two-equation turbulent model is employed .

方法对30例经阴道二维超声检查怀疑IUD异常的患者行三维超声成像检查，通过对子宫腔与IUD的三维超声图像重建，明确IUD的形状与位置。

Methods Three dimensional ultrasound imaging examination was conducted in 30 patients suspected with abnormality of IUD based on transvaginal two dimensional ultrasound imaging examination .

目的应用虚拟现实（VR）技术，实现室间隔缺损（VSD）的心内三维超声虚拟现实诊断。

Objective To investigate the diagnostic value of three dimensional echocardiography ( 3 DE ) with virtual reality ( VR ) in detecting ventricular septal defect ( VSD ) .

为了验证freehand三维超声引导的穿刺手术机器人辅助系统的有效性，通过一系列实验测试了系统的定位精度。

To verify effectiveness of the robot-assisted system for percutaneous surgery guided by freehand 3D ultrasound , a series of experiments are made to test needle positioning accuracy .

系统主要由三维超声导航和空间定位装置组成。使用以下设备：B型超声仪（ULTRAMARK-9，ATL公司，美国）；

The following components were used : a commercial B-mode ultrasound scanner ( ULTRAMARK-9 , ATL , US );

目的：探讨实时三维超声心动图（RT3DE）在心脏占位性病变中的临床应用价值。

Objective : To evaluate the value of real-time three-dimensional echocardiography ( RT3DE ) in cardiac space-occupying lesions .

在Freehand三维超声成像系统中应用不规则采样平面的超声三维图像重建方法，实现了相应的算法，并将其应用于人体左颈动脉血管的三维超声图像的重建。

In the Freehand 3D ultrasound imaging system , the ultrasound 3D rebuilding method of anomalistic sampling plane is used to realize the 3D ultrasound imaging rebuilding of clay left neck artery .

目的：探讨实时三维超声技术（RT-3DE）用于评价心肌梗死患者左室容量与功能准确性的价值。

Objective : To evaluate the accuracy and value of measurement of left ventricule volume and function in myocardium infarction with real-time three-dimensional echocardiography ( RT-3DE ) .

VCI-C平面及三维超声重建对股动脉粥样硬化斑块的诊断价值

Diagnosis of atherosclerotic plaque in femoral artery with volume contrast imaging C-plane and 3D ultrasonic reconstruction

VCI-C平面及三维超声重建对胎儿显性脊柱裂诊断价值的探讨先天性白血病先天性白内障隐性骶椎裂致排尿障碍的尿动力学及X线影像学研究

Diagnosis of Congenital Spina Bifida Manifesta in Fetuses Using Volume Contrast Imaging C-plane and 3D-Ultrasonic Reconstruction

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 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 .

目的评价三维超声宫腔造影（3D-SHG）测量子宫纵隔长度，对切除子宫纵隔的指导作用。

To evaluate the significance of employing3D-SHG measurement to guide the excision of septum of uterus securely and effectively .

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。

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 .

目的探讨三维超声彩色多普勒能量图（3D-CDE）技术在膀胱癌诊断中的意义。

Objective To discuss the application of three dimensional ultrasound color Doppler energy ( 3D CDE ) technology in the diagnosis of bladder cancer .

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）。

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

结果三维超声心动图能精确进行ASD面积测量，ASD面积变化率与RVEDV和RVEF分别呈中度正相关和中度负相关，ASD最大面积与最小面积存在高度相关性。

Results 3-DE could precisely measure the ASD . ASD area change percentage correlated with RVEDV and 3-DE had negative correlation with RVEF . The maximum area correlated well with the minimum area .

目的探讨经食管三维超声心动图（3D-TEE）的临床应用价值及应用前景。

Objective To explore the clinic application of three-dimensional transesophageal echocardiography ( 3D-TEE ) in cardiac diseases .

用拼接法划分网格，并运用基于消息传递的并行软件平台PVM分配计算任务，实现了较大规模的三维超声速钝头体底部流场的并行数值模拟。

This paper uses patched grid method to divide grids and parallel software platform PVM based on message passing to distribute computational task . The large scale parallel numerical simulations of 3 D supersonic blunt body base flow are accomplished .

前后瓣膜开放幅度较正常小。结论三维超声心动图测量二尖瓣装置功能结构参数CTaa、α角、β角和瓣环面积可能对二尖瓣装置异常的评估有一定的意义。

Conclusions Three dimensional measurement of CTaa , area ,α angle and β angle could have definite value for evaluating abnormal mitral apparatus .

报告经食管三维超声心动图（3D-TEE）59例临床应用的体会。

In this paper the authors reported the clinical application of three-dimensional transesophageal echocardiography ( 3D TEE ) in59 patients .

目的评价实时三维超声心动图（RT3DE）技术测量右心室容积的可行性与准确性，并探讨最佳测量平面数。

Objective To probe the feasibility and accuracy of using series apical long axis planes for the quantitative of right ventricular volumes with real-time three-dimensional echocardiography ( RT-3DE ) .

目的评价全容积三维超声（FVTDE）对人工瓣、心内补片、封堵器及起搏电极成像效果。

Objective To evaluate the effect of full-volume three-dimensional echocardiography ( FVTDE ) on prosthetic valves , patches , cardioseals and pacing electrodes .

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。

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 .