Objective To evaluate the change trends of peak systolic radial strain(RS) and circumferential strain(CS) in patients with ischemia cardiomyopathy( ICM) by using of ultrasound speckle tracking imaging(STI). Methods The high frame rate two-dimensional images were obtained by echocarography devices for 32 patients with ICM and 32 cases as normal controls,and the peak values of RS and CS in the region of interest were measured by means of two- dimensional ultrasound speckle tracking imaging. Results Systolic R...