1引言二尖瓣狭窄、关闭不全是临床上常见的心脏瓣膜病变,可单独发生,也可二者并存。UCG检查是诊断心脏瓣膜病最常用、最重要的无创性检查方法。综合运用各种超声显像技术通常能够确定二尖瓣或瓣下结构损害的部位、性质、程度,同时可观察心房、心室的大小变化、评价心功能状态及 1 Introduction Mitral stenosis, incomplete closure is a common clinical heart valve disease, can occur alone, but both co-exist. UCG is the most common and important noninvasive method of diagnosing heart valve disease. Comprehensive application of a variety of ultrasound imaging techniques can usually determine the location of mitral or subvalvular lesions, nature, extent, at the same time can be observed atrial and ventricular size changes, evaluation of cardiac function and