【摘要】 目的利用超声心动图观察正常成年人心脏室间隔与升主动脉长轴夹角(Ao SA),比较中线-中线法、中线-平行法测量Ao SA是否存在差异。方法随机选择年龄大于18岁的健康人138例,排除高血压、心脏病、脊柱畸形、胸廓畸形、肺部疾病等影响心脏形态结构位置的因素。利用中线-中线法、中线-平行法两种方法分别测量Ao SA,并记录处理所用时间;随机选取30例图像由两位有经验的高年资医师用两种方法分别独立测量Ao SA进行重复性评价。结果两种方法测量结果差异无明显统计学意义(P>0.05)。中线-平行法测量用时较短(P<0.001),且观察者内及观察者之间重复性均好于中线-中线法。结论中线-平行法测量室间隔与升主动脉夹角简单、快捷、重复性好,值得推广。更多还原

【Abstract】 Objective To compare the difference of the angle between interventricular septum and ascending aorta( Ao SA) in healthy adult by parallel-axis and midline-axis measurements in echocardiography. Methods Echocardiography was performed in 138 healthy intellectuals aged 18- 80 years. The Ao SA was measured by parallel-axis and midline-axis methods respectively,and the time they needed was calculated. Thirty randomly selected cases were measured twice to test the repeatability by different operators using each measurement method. Results There was no significant difference in Ao SA value between parallel-axis and middle-axis measurement methods( P > 0. 05). But the time they needed was shorter by parallel-axis method( P < 0. 001). The measurement of parallel-axis showed higher repeatability than middle-axis measurement within and between operators. Conclusion The measurement method of parallel-axis is simple,fast and repeatable,and it is worth promoting.更多还原