常规测定二尖瓣血流频谱。
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。
Conclusion PVF spectrum and mitral valve flow spectrum can be used to evaluate left ventricular diastolic function of RH children.
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。
Conclusions LAF can indicate the echocardiographic changes of the left ventricular abnormal diastolic function in the earlier stage than mitral valve flow indices does.
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.
目的：应用肺静脉血流图结合二尖瓣血流图评价糖尿病心脏病变引起的左室舒张功能变化，旨在探讨更敏感的检测方法。
Objective:To seek for a new Echo Doppler method which can more sensitively detect changes of left ventricular diastolic function in NIDDM.
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。
Mitral valve flow spectrum commonly reflect the state of left ventricular diastolic function, but several cases with pseudonormalization spectrum can't be clearly assessed.
模型包括左心房、左心室、二尖瓣、动脉瓣和动脉系统，实现了对左心循环系统的血流动力学模拟。
The model contains left ventricle(LV), left atrium, systemic circulation, aortic valve and mitral valve; it simulated the hemodynamics phenomena of left heart circulation.
目的：采用彩色多普勒血流显像技术，评价由不同病因引起的二尖瓣返流形态学特征。
Objective: To evaluate vary cases morphology character of mitral regurgitation caused by different causes by Color Doppler Flowing Imaging (CDFI).
观察30例显示血流会聚区（FCR）的偏心性二尖瓣返流患者的返流束形态，发现均为附壁细长束。
The shape of regurgitant jets in 30 patients with eccentric mitral regurgitation showing now convergence region (FCR) was observed.
认为血流会聚法是一种准确、可靠且实用的二尖瓣返流量计算方法。
We conclude that FCM is an accurate, reliable and very useful method for calculating mitral regurgitation stroke volume.
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。
Method 2-de M-mode and pulsed Doppler were used to measure left ventricular geometric model mitral valve and pulmonary venous flow index.
结论双叶机械瓣对二尖瓣置换术患者的血流动力学影响优于倾斜碟瓣。
Conclusion Bileaflet valve has a better hemodynamic influence than tilting disk valve in on patients with replacement of mitral valve.
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。
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.
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。
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.
彩色血流观察二尖瓣、三尖瓣反流程度。
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。
The value of flow convergence and jet parameters in quantification of mitral regurgitation was estimated.
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；
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：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。
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.
为了解二尖瓣关闭不全时的血流动力学变化，我们以彩色多普勒超声心动图研究了55例二尖瓣关闭不全患者，其中31例经手术对照。
To evaluate the hemodynamics of mitral regurgitation, we studied 55 patients with mitral insufficiency by color Doppler echocardiography, among whom 31 were operated for confirmation.
目的探讨二尖瓣口血流频谱和瓣环的组织多普勒频谱与左室平均舒张压的关系。
Objective To determine the relationship between left atrial diameter and mitral valve area or left atrial mean pressure in patients with rheumatic pure mitral stenosis.
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。
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.
目的：观察二尖瓣脱垂病人超声心动图左房侧血流。
OBJECTIVE: To observe mitral regurgitation (MR) flow in left atrium of mitral valve prolapse (MP) by echocardiography.
方法在二尖瓣水平以多普勒超声体积血流方法建立以心室率为变量的心输出量方程。
Methods an equation for estimating cardiac output according as the change of ventricular rate was established by Doppler volume flowing method at mitral valve.
方法在二尖瓣水平以多普勒超声体积血流方法建立以心室率为变量的心输出量方程。
Methods an equation for estimating cardiac output according as the change of ventricular rate was established by Doppler volume flowing method at mitral valve.
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