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, and then evaluate left ventricular systolic function. This article reviews the research progress of 2D-STI on left ventricular systolic function.
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2019, Vol. 16 
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