M method was in the end (r=0. 752). Conclusion: The method of TVI is superior in measuring of LVEF for case with remarkable enlargement of left ventricle.

• 结论:在左室形态和功能明显变化的情况下,TVI方法测量LVEF明显优于目前临床常用的M和2D单面面积一长轴法。