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ObjectiveTo assess cardiac function by strain imaging (SI) in patients with atrial septal defects (ASD) undergoing device closure.
目的应用超声应变显像技术(SI)评价房间隔缺损(asd)封堵术前、术后心脏功能的变化。
Objective to evaluate the regional myocardial systolic function in the patients with hypertrophic cardiomyopathy (HCM) by strain imaging technique.
目的应用应变成像技术对肥厚型心肌病患者和正常人的心功能进行研究。
Objective To study the influence of incidence angle of ultrasound and strain length(SL) on strain imaging(SI) and strain rate imaging(SRI) in long-axis direction.
目的探讨室壁与入射超声之间的夹角及应变长度（SL）对长轴方向应变成像（SI）和应变率成像（SRI）的影响。
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