Department of Cardiovascular Diseases, University of Siena, Viale Bracci 1, 53100 Siena, Italy.
Heart Fail Rev. 2010 Jan;15(1):23-37. doi: 10.1007/s10741-009-9147-9.
Quantification of left ventricular (LV) systolic function represents a major aspect of echocardiographic assessment in the spectrum of cardiac diseases. However, because of the high complexity of LV contraction mechanics, the classical approach with assessment of a single measure of systolic function, such as ejection fraction or fractional shortening, has been largely superseded. During the last years, through the considerable technical advances in the field of ultrasonography, a number of different echocardiographic methodologies have become available to perform a detailed assessment of different aspects of LV contraction. In particular, evaluation of LV longitudinal systolic dynamics has progressively gained importance as a key aspect in the assessment of LV systolic function. For most of the techniques currently used to explore LV longitudinal function, the clinical usefulness in both research and daily practice has been validated by consistent evidence and their use is rapidly increasing. Technical considerations and potential clinical applications of the assessment of LV longitudinal systolic function are reviewed.
定量评估左心室（LV）收缩功能是心脏疾病超声心动图评估的主要方面。然而，由于 LV 收缩力学的高度复杂性，传统的评估方法主要是评估收缩功能的单一指标，如射血分数或短轴缩短率，已经在很大程度上被取代。近年来，随着超声领域的技术进步，已经有许多不同的超声心动图方法可用于详细评估 LV 收缩的不同方面。特别是，评估 LV 纵向收缩动力学作为评估 LV 收缩功能的一个关键方面逐渐变得重要。对于目前用于探索 LV 纵向功能的大多数技术，其在研究和日常实践中的临床应用价值已经得到了一致证据的验证，并且其应用正在迅速增加。本文回顾了评估 LV 纵向收缩功能的技术考虑因素和潜在临床应用。
