Smith M D
Division of Cardiology, University of Kentucky Medical Center, Lexington.
Cardiol Clin. 1991 May;9(2):193-228.
Although most clinical decisions about timing of intervention remain based on symptoms or evidence of progressive ventricular dysfunction in valvular regurgitation, several available Doppler techniques can give confirmation of the presence of significant insufficiency. For these reasons, the 2D echocardiographic and Doppler evaluation has become an integral part of the diagnostic and clinical management of these patients. These imaging techniques are still in their infancy, however, and the exact relationship between jet appearance and clinical and hemodynamic implications remains to be defined. Newer approaches to color flow display of Doppler velocity information, such as power mode, quantification of jet momentum, and kinetic energy mapping may provide a better understanding of the dynamic nature of valvular regurgitation. In the future, Doppler recordings may provide the basis for a more sophisticated understanding of the hydrodynamics of valve dysfunction.
虽然大多数关于干预时机的临床决策仍基于瓣膜反流时的症状或进行性心室功能障碍的证据，但几种现有的多普勒技术可以证实严重反流的存在。基于这些原因，二维超声心动图和多普勒评估已成为这些患者诊断和临床管理中不可或缺的一部分。然而，这些成像技术仍处于起步阶段，射流表现与临床及血流动力学影响之间的确切关系仍有待确定。多普勒速度信息的彩色血流显示的新方法，如功率模式、射流动量量化和动能映射，可能会更好地理解瓣膜反流的动态特性。未来，多普勒记录可能为更深入理解瓣膜功能障碍的流体动力学提供基础。
