Objective To assess cardiac function in patients after percutaneous coronary intervention(PCI) with single photon emission computed tomography(SPECT) and echocardiography(UCG).

• 目的应用单光子发射计算机断层显像(SPECT)及超声心动图(UCG)评价冠心病患者行经皮冠状动脉介入(PCI)治疗后对左心功能的影响。