组织多普勒超声心动图评价冠脉搭桥手术效果

Assessing the effects of CABG using tissue Doppler echocardiography

目的 应用脉冲组织多普勒超声心动图速度指标评价冠脉搭桥手术的效果。方法 本研究 32例患者均于手术前后采用 Ving- med System V超声心动图仪进行脉冲组织多普勒检查 ,按照冠状动脉分布进行节段室壁运动观察 ,测量收缩期 S波、舒张期 E波、心房收缩期 A波的峰速度 ,A/E比值并计算跨壁速度梯度 (MVG)。结果 S波、E波及 A波是左室壁运动脉冲多普勒频谱的三个主要特征性频移成分。冠脉搭桥手术前后脉冲组织多普勒超声心动图速度指标具有显著性差异。结论 脉冲组织多普勒超声心动图速度指标是评价冠脉搭桥手术疗效简便、有效的手段。

ObjectiveTo evaluate the effect of coronary-artery bypass graft surgery(CABG) with pulsed tissue Doppler echocardiography(P-TDE).Methods32 patients underwent P-TDE examination before and after CABG and the velocity parameters measured were S,E,A,A/E and MVG.Results S,E,A/E and MVG were significantly different between pre-CABG and post-CABG.ConclusionP-TDE could accurately examine myocardial velocity in patients with CABG and is an easy and efficient method for assessing the effects of CABG.