心脏再同步化治疗(CRT)对伴心室不同步的中至重度心力衰竭患者疗效与安全性已获证明。然而,近三分之一患者对CRT无反应。研究表明心肌影像技术有助于机械不同步的识别,最常用的指标为①侧壁之间收缩值的差值;②12节段模型中,达到收缩速度峰值、时间之标准差。预测CRT疗效的其他指标有a、耗氧峰值;b、运动耐量;c、左室重构。但仍有许多问题有待解决。 Efficacy and safety of cardiac resynchronization therapy (CRT) in patients with moderate-to-severe heart failure with asystolement have been demonstrated. However, nearly one-third of patients have no response to CRT. Studies have shown that myocardial imaging technology can help identify mechanical out of synchronization, the most commonly used indicators for the difference between the value of the contraction of the side wall; ② 12-segment model to achieve the peak systolic velocity, the standard deviation of time. Other indicators of CRT efficacy prediction a, oxygen consumption peak; b, exercise tolerance; c, left ventricular remodeling. However, many problems remain to be solved.