目的应用应变率成像技术评价RAS抑制剂对高血压患者左心房功能的影响。

Objective To explore and assess the effects of Renin-Angiotensin System(RAS)inhibitors on left atrium in patients with essential hypertension by strain rate imaging(SRI).

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目的应用速度向量成像(VVI)技术初步探讨脑梗死患者颈总动脉管壁短轴方向运动速度、应变及应变率的特点。

Objective to study the velocity, strain and strain rate of the carotid arterial wall motion using velocity vector imaging (VVI) in cerebral infarction patients.

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