目的采用多普勒组织成像(dti)技术评价冠状动脉旁路移植(CABG)术后左心室功能变化。
ObjectiveTo assess the left ventricular function in patients before and after coronary artery bypass grafting (CABG) using Doppler tissue imaging (DTI).
采用心内超声组织多普勒显像技术获取窦性心律上述各点的二维、M型心肌速度和加速度图像；
M mode and 2D TDI were obtained to map myocardial velocity and acceleration with normal sinus rhyme at different sites of cardiac conductive system described above.
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