心脏生物力学无创分析应用的新进展  

New Development in Non-invasive Evaluation of Cardiac Biomechanics

作　　者：司效东[1] 刘志跃[1] 

机构地区：[1]内蒙古医学院病理生理学教研室,呼和浩特010059

出　　处：《医学综述》2011年第2期170-172,共3页Medical Recapitulate

基　　金：内蒙古自然科学基金(200711020939)

摘　　要：心脏生物力学指标是评价心肌舒缩功能的敏感指标。应变/应变率成像是近年发展起来的一种无创性定量评价心肌生物力学功能的超声技术。组织多普勒技术仅可以测量心肌长轴方向的应变和应变率,而二维应变利用斑点追踪技术能计算出心肌各个方向运动的应变、应变率及旋转角度等参数,且无角度依赖,可为观察心肌运动、定量评价心肌功能,即为心脏生物力学无创分析的应用提供可靠的技术支持。Cardiac mechanical indices have special clinical values in evaluating the contract and relaxation function of heart.Strain and strain rate imaging is a new non-invasive method assessing myocardial function.Tissue Doppler technology can only measure the long axis of myocardial strain and strain rate.Two-dimensional strain dot tracking technology can calculate strain of all directions,strain rate,and myocardial rotation without angle dependence.Therefore,it can offer a new method to observe the myocardial motion and to quantitatively assess the myocardial function.With the development of echocardiography technology,it will be widely used to evaluate the biomechanical characteristic of heart by using these indices.

关 键 词：心脏生物力学 定量组织速度成像技术 斑点追踪成像技术 

分 类 号：R540.45[医药卫生—心血管疾病] R541[医药卫生—内科学]