Normal values for Doppler echocardiographic assessment of heart valve prostheses
Normal values for Doppler echocardiographic assessment of heart valve prostheses
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DOI：
10.1067/s0894-7317(03)00638-2
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发表时间：
2003-11-01
影响因子：
6.5
通讯作者：
Baumgartner, H
中科院分区：
文献类型：
--
作者：
Rosenhek, R;Binder, T;Baumgartner, H
评估心脏瓣膜假体的正常和异常功能仍然具有挑战性。多普勒超声心动图已被证明可以在各种临床环境中进行血流动力学评估，并已成为评估人工瓣膜功能最广泛使用的工具。人工瓣膜即使功能正常，也会在一定程度上阻碍血液流动。梯度、压力半程和有效孔口面积的正常值取决于阀门类型和阀门通径。因此，对人工瓣膜功能的多普勒评估需要明确瓣膜类型和瓣膜尺寸，并了解正常值。本研究提供了正常值可用数据的最新概述，以促进对多普勒数据的充分解释。
Assessment of normal and abnormal function of heart valve prostheses remains challenging. Doppler echocardiography has been shown to allow hemodynamic evaluation in various clinical settings and has become the most widely used tool to assess prosthetic valve function. Prosthetic valves, even when they function normally, are to some degree obstructive to the blood flow. The normal values of gradients, pressure half-time, and effective orifice area depend on valve type and valve size. Doppler assessment of prosthetic valve function, thus, requires specification of valve type and valve size, and knowledge of the normal values. This study provides an updated overview on the available data of normal values to facilitate adequate interpretation of Doppler data.