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- regurgitant valve orifice area 瓣口反流面积
- Methods:The 20 patients with rheumatic mitral stenosis receipted examination of doppler echocardiography.We measure transmitral pressure gradient,mitral valve orifice area and pulmonary flow pattern. 方法:20例风湿性二尖瓣狭窄患者,经多普勒超声心动图检查,测量了二尖瓣口压差、瓣口面积及肺动脉血流频谱参数。
- Comparison study of stenotic mitral valve orifice area measured from real-time three-dimensional echocardiography and surgical specimen 实时三维超声心动图与手术测量二尖瓣狭窄瓣口面积的对照研究
- Initial exploration into measurement of stenotic mitral valve orifice area by real-time three-dimensional echocardiography 实时三维超声心动图测量二尖瓣狭窄瓣口面积的初步探讨
- valve orifice area 瓣口面积
- aortic valve orifice area 主动脉瓣口面积
- mitral valve orifice area 二尖瓣口面积
- They can produce a "ball valve" effect by intermittently occluding the atrioventricular valve orifice. 他们可以产生“球阀”效应，引起房室瓣口间歇性关闭。
- In PAH group, the mitral valve orifice blood streams, the AV of Doppler spectrum,the velocity-time integra and AV/EV, AVI/EVI were all increased significantly compared with the control group (P<0?01). PAH组与对照组比较;二尖瓣口血流多普勒频谱A峰流速(AV)、速率时间积分(AVI)及肺动脉压与二尖瓣口血流频谱比值(AV/EV);AVI/EVI均逐渐明显增大;差异均有显著意义(P<0.;01);
- Objectives\ This study was designed to examine whether proximal isovelocity surface area method(PISA) is better than pressure half time method(PHT) in the measurement of mitral mechanical prosthetic orifice area(MPOA). 目的探讨血流汇聚法（pisa法）与压差半降法（PHT法）测量机械二尖瓣口有效开放面积的准确性及可靠性。
- In order to estimate eccentric MR,two parameters named turbulent intensity and regurgitate angle were proposed to modify the effective regurgitate orifice area(EROA) based on traditional PISA algorithm. 针对这一现状,从返流角度和湍流强度两个方面,对传统PISA算法的有效返流瓣口面积(EROA)进行修正。
- valvular orifice area calculation 瓣膜口面积计算
- He steered into the parking area. 他把车开进了停车区。
- Series FMO orifices are supplied with two pressure taps used to measure differential pressure across the valve orifice and a metal tag that displays flow rates by differential pressure. 系列FMO孔配置两个测压孔，用于测量通过阀门孔的压差，以及一个金属标签，显示与压差对应的流量。
- A mouse ran out from the dark orifice of the cave. 一只老鼠从黑暗的洞口跑出。
- Design and Characteristic Analysis of Water Hydraulic Valve Orifice 海淡水液压阀阀口设计及性能分析
- The slum area was sordid and filthy beyond belief. 该贫民区之污秽肮脏简直令人难以置信。
- Study and Application of the Bernoulli Effect Near a Valve Orifice 阀口高速流区伯努利效应分析及其应用
- The flood cut a wide swath in this area. 洪水席卷了这一地区，满目一片疮痍。
- The luminous intensity on unit area. 单位面积上的发光强度。
