> In contrast, in the apical 4-chamber view (Figures 5-7) it is possible to see a leftward inspiratory shift prevalently of the base of the inferior septum (Figure 6, white arrows).

> The leftward shift of the interatrial septum (Figure 7) confirms the presence of increased right atrial pressure.

>使用造影剂，心尖4腔图（图5-7）中可以会看到下间隔底部在吸气时向左移动（图6，白色箭头）。 >房间隔左移（图7）证实右房压力增加的存在。