PDF(Pubmed)
Abstract：
The analysis of left ventricular function is predominantly based on left ventricular volume assessment. Especially in valvular heart diseases, the quantitative assessment of total and effective stroke volumes as well as regurgitant volumes is necessary for a quantitative approach to determine regurgitant volumes and regurgitant fraction. In the literature, there is an ongoing discussion about differences between cardiac volumes estimated by echocardiography and cardiac magnetic resonance tomography. This viewpoint focuses on the feasibility to assess comparable cardiac volumes with both modalities. The former underestimation of cardiac volumes determined by 2D and 3D echocardiography is presumably explained by methodological and technical limitations. Thus, this viewpoint aims to stimulate an urgent and critical rethinking of the echocardiographic assessment of patients with valvular heart diseases, especially valvular regurgitations, because the actual integrative approach might be too error prone to be continued in this form. It should be replaced or supplemented by a definitive quantitative approach. Valid quantitative assessment by echocardiography is feasible once echocardiography and data analysis are performed with methodological and technical considerations in mind. Unfortunately, implementation of this approach cannot generally be considered for real-world conditions.
摘要：
左心室功能的分析主要基于左心室容积评估。尤其是在心脏瓣膜病中,对于定量方法来确定反流体积和反流分数,需要对总的和有效的每搏体积以及反流体积进行定量评估.在文学中,目前正在讨论超声心动图和心脏磁共振断层成像估计的心容积之间的差异.这种观点集中在评估两种模式的可比心脏体积的可行性。先前通过2D和3D超声心动图确定的心脏体积的低估可能是通过方法和技术限制来解释的。因此，这一观点旨在激发对心脏瓣膜疾病患者的超声心动图评估的紧急和批判性的重新思考，尤其是瓣膜反流,因为实际的综合方法可能太错误，容易以这种形式继续下去。应该用明确的定量方法代替或补充。一旦在考虑方法和技术因素的情况下进行超声心动图和数据分析，通过超声心动图进行有效的定量评估是可行的。不幸的是,这种方法的实施通常不能被认为是现实世界的条件。
