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摘要目的研究心脏CT(CCT)能否确定拟行心脏再同步治疗(CRT)的病人心室内运动不同步,并与实时三维超声心动图(RT3DE)对照。方法35例拟行CRT的病人接受检查。采用RT3DE和心电门控增强64层双源CCT,通过计算左室心肌17个节段的标准差指数(SDI)对左室运动不同步进行定量。两种分
Abstract Objective To investigate whether cardiac CT (CCT) can determine ventricular dyskinesia in patients undergoing cardiac resynchronization therapy (CRT) and compare with real-time three-dimensional echocardiography (RT3DE). Methods 35 patients scheduled for CRT were examined. Using RT3DE and ECG gating to enhance 64-layer dual-source CCT, left ventricular asynchrony was quantified by calculating the standard deviation index (SDI) of 17 segments of left ventricular myocardium. Two points