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- 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。
- 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。
- 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。
- A mouse ran out from the dark orifice of the cave. 一只老鼠从黑暗的洞口跑出。
- 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。
- 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。
- An endless flow of word stream from the same orifice. 一连串滔滔不绝的话都是同一张嘴巴讲出来的。
- White lines divide the playing area into sections. 这些白线把赛区分成各个部分。
- The first chapter delimits her area of research. 第一章阐明了她的研究领域。
- Sorry. I must have got the wrong area code. 对不起,我一定是拔错地区号码了。
- An endless flow of words streamed from the same orifice. 一连串滔滔不绝的话都是同一张嘴巴讲出来的。
- This is the area that attracts the most attention. 这是最受关注的地区。
- The folk song has a good run in this area. 这支民歌在这个地区非常流行。
- Wet weather is a feature of life in this area. 天气潮湿是这个地区生活的一个特色。
- The area is subject to devastating seasonal winds. 这个地区常遭破坏性季风的袭击。
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- How can people make a living in this arid area? 这片不毛之地上的人们怎么谋生呢?