速度向量成像技术(VVI)是一种斑点追踪技术,在定量评价心脏局部和整体功能上比传统的超声技术更具优势。VVI不仅可以评价局部心肌的收缩或舒张功能障碍,敏感地检出病变心肌,还能分析心室运动的同步性,为心脏再同步化治疗筛选患者、判断疗效,另外运用VVI评价心脏的扭转运动也是当前的热门课题。 Velocity Vector Imaging (VVI) is a speckle tracking technique that offers advantages over traditional ultrasound techniques in quantitative assessment of cardiac localization and overall function. VVI can not only assess the local myocardial contractile or diastolic dysfunction, the detection of diseased myocardium sensitive, but also to analyze the synchronization of ventricular motion, cardiac resynchronization therapy screening patients to determine the efficacy, in addition to the use of VVI evaluation of heart torsion exercise is The current hot topic.