【摘要】 目的探讨实时三平面应变率成像技术评价非体外循环冠状动脉搭桥术(OPCABG前后左室长轴局部收缩功能的临床应用价值。方法应用实时三平面应变率成像技术检测OPCABG前后室间隔及左室壁各节段收缩期峰值应变率(SRS)。结果与术前比较,OPCABG术后1周部分节段SRS增加(P<0.05),术后3个月各节段SR_s进一步增加(P<0.05)。结论 OPCABG后,左室长轴局部收缩功能明显改善;实时二平面应变率成像技术可以定量准确评价OPCABG前后左室长轴局部收缩功能的变化。更多还原

【Abstract】 Objective To evaluate the left ventricular long-axis regional systolic function before and after off-pump coronary artery bypass graft(OPCABG) using real-time triplane strain rate imaging.Methods Using real-time triplane strain rate imaging,the systolic strain rate(SR_S) was obtained before and after OPCABG at interventricular septum and left ventricular wall.Results SR_S was increased 1 week and 3 months after OPCABG in different degree, respectively(P<0.05).Conclusions Left ventricular long-axis regional systolic function was improved after OPCABG. Real-time triplane strain rate imaging can quantitative evaluate left ventricular long-axis regional systolic function before and after OPCABG.更多还原