The SD of mitral and tricuspid annuli were more lower than control group (P<0.01), and E velocity of mitral flow is higher (P<0.01) .
患者较正常对照组心脏二尖瓣环、三尖瓣环下移距离显著减小（P<0.01），二尖瓣E波最大流速显著增大（P<0.01）；
Mitral valve flow spectrum commonly reflect the state of left ventricular diastolic function, but several cases with pseudonormalization spectrum can't be clearly assessed.
二尖瓣口血流频谱测值一般反映了左室舒张功能状态，但对几例出现的“伪正常”频谱表现难以明确评价。
The value of flow convergence and jet parameters in quantification of mitral regurgitation was estimated.
用血流会聚新方法及射流参数对二尖瓣返流定量的价值进行了研究。
Flow convergence region, which was located in the left ventricular sides of mitral valve, was displayed in 63%(33/52)of physiological MR and 100%(87/87) of pathological MR.
结果发现：33／52（63％）例生理性二尖瓣返流和87／87（100％）例病理性二尖瓣返流可于二尖瓣左室面显示血流会聚区；
Objective To probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的探讨二尖瓣环收缩期峰值速度及收缩期位移评价扩张型心肌病患者左室收缩功能的价值。
It was concluded that M-mode and two-dimensional color Doppler flow convergence region could be used to quantificate the area of mitral stenosis accurately.
结果表明，M型彩色多普勒血流会聚法与二维彩色多普勒血流会聚法在检测二尖瓣狭窄瓣口面积方面基本可靠，但两者的准确性无显著差异。
Conclusions LAF can indicate the echocardiographic changes of the left ventricular abnormal diastolic function in the earlier stage than mitral valve flow indices does.
结论左房灌注分数(LAF)可以比二尖瓣血流频谱更早的体现左室舒张功能的异常改变。
OBJECTIVE: To observe mitral regurgitation (MR) flow in left atrium of mitral valve prolapse (MP) by echocardiography.
目的：观察二尖瓣脱垂病人超声心动图左房侧血流。
Left atrial, left ventricular pressure curves and aortic blood flow curves were measured beret and after mitral valve replacement.
测定置换前、后的左心房和左心室压力曲线，以及主动脉流量曲线。
Objective to probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的：通过超声心动图评价二尖瓣器形态改变与二尖瓣返流程度之间的关系及其临床意义。
Color flow observed mitral, tricuspid valve regurgitation.
彩色血流观察二尖瓣、三尖瓣反流程度。
Conclusion PVF spectrum and mitral valve flow spectrum can be used to evaluate left ventricular diastolic function of RH children.
结论P VF频谱与二尖瓣血流频谱对评价RH左室舒张功能有参照意义。
The quantification of mitral stenosis by using a new color Doppler flow convergence method was evaluated, and compared with two -dimensional echocardiography, pressure half- time and combined method.
本研究应用彩色多普勒血流会聚新方法评价了对二尖瓣狭窄的定量诊断，并与二维超声、压力降半时间及综合法测量二尖瓣狭窄进行了比较。
RESULTS: the reverse flow were detected at the mitral valve orifice of left atrium, at the opposite of which in left atrium the front flow were also detected.
结果：在观察到二尖瓣口左房侧负向血流的同时，在其左房的相对面可测到前向性血流。
Starr convinced Edwards to narrow his focus and help develop a mechanical replacement for the heart's mitral valve which controls blood flow within the heart.
斯塔尔说服爱德华兹缩小他的研究范围，集中精力，研发一个代替。
Method 2-de M-mode and pulsed Doppler were used to measure left ventricular geometric model mitral valve and pulmonary venous flow index.
方法：采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组二尖瓣、肺静脉血流频谱。
Color m mode Doppler echocardiography studies were obtained from mitral valve orifice toward the apex: the rate of flow propagation velocity (FPV) from apical 4 chamber views.
将m型取样线置于二尖瓣口左室流入道至心尖获取彩色左室舒张期血流传播图测量fpv。
Methods 2-de, M-mode and pulsed Doppler were used to measure left ventricular geometric models, left atrial function and mitral valve flow indices.
方法采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组左房功能及二尖瓣血流频谱指标。
Methods 2-de, M-mode and pulsed Doppler were used to measure left ventricular geometric models, left atrial function and mitral valve flow indices.
方法采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组左房功能及二尖瓣血流频谱指标。
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