武丹妮 栗平 田海燕

    [摘要] 二维彩色多普勒心脏超声因其操作的快速、便携、经济等优势应用于心脏功能和结构的评价，并通过M型超声心动图、二维Simpson双平面法完成心室收缩和舒张功能及心室容积的测定。但对于左心室收缩功能存在细微变化者则二维彩色多普勒心脏超声各项参数则不能真实反映其变化。随着现代超声医学影像的逐步发展，二维斑点追踪成像技术(2D-STI)通过动态追踪心肌组织实时回声斑点运动评价左心室收缩，弥补了二维彩色多普勒心脏超声的诸多不足。本文现就2D-STI对左心室收缩功能的研究进展予以综述。

    [关键词] 二维斑点追踪成像技术;左心室收缩功能;应变

    [中图分类号] R541.1? ? ? ? ? [文献标识码] A? ? ? ? ? [文章编号] 1673-7210(2019)08(b)-0045-04

    [Abstract] Two-dimensional color Doppler echocardiography has been applied to evaluate cardiac function and structure for its advantages of fast， portable and economical operation. The measurement of ventricular systolic and diastolic function and ventricular volume has been completed by M-mode echocardiography and two-dimensional Simpson biplane method. However， for some special diseases or slight changes in left ventricular systolic function， the parameters of two-dimensional color Doppler echocardiography can not truly reflect the changes. With the gradual development of modern ultrasound medical imaging， two-dimensional speckle tracking imaging (2D-STI) makes up for many shortcomings of conventional two-dimensional color Doppler echocardiography. It can dynamically track the real-time echo speckle movement of myocardial tissue ......