目的：应用应变和应变率显像技术对正常人和原发性高血压患者颈总动脉壁顺应性特点进行研究。
Objective: To assess the compliant properties of the Common Carotid Artery (CCA) in healthy subjects and patients with essential hypertension based on strain-strain rate imaging.
应变率成像是从组织多普勒显像中衍生出来的新技术，它是一种研究局部心功能的无创的新方法。
Strain rate imaging is a new technique deriving from tissue Doppler imaging, which is a new noninvasive method studying local heart function.
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