Objective To evaluate the reliability of tissue velocity imaging (TVI) in quantitatively assessing left ventricular segmental wall function.

目的探讨组织速度显像(TVI)技术评价左室节段性室壁运动的可靠性。

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Objective To evaluate left heart function in pre-dialysis patients with different stages of chronic kidney disease (CKD) by tissue Doppler velocity imaging (TVI).

目的采用组织多普勒速度成像（TVI）评价不同阶段慢性肾脏疾病患者的左心功能变化。

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