Keywords transthoracic coronary Doppler echocardiography;TDI-Q Regional Strain;Automated Mitral Annular Tracking Technique;intracoronary stent implantation;

• 经胸冠状动脉血流显像;短轴应变成像;二尖瓣环自动追踪技术;冠状动脉支架置入术;