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Figure 8. 2D subcostal 4-chamber view
Figure 9. 2D subcostal 4-chamber view. Pericardial adhesions
Figure 9. 2D subcostal 4-chamber view. Pericardial adhesions
Figure 10. 2D subcostal 4-chambers, inspiratory leftward septal shift
Figure 10. 2D subcostal 4-chambers, inspiratory leftward septal shift

Figure 11. 2D subcostal 4-chambers, normal pericardium

> In the subcostal 4-chamber view (Figures 8-9) it is possible to visualize in detail the anatomy and function of the pericardium lateral to the right heart chambers (white arrows):
1. no intrapericardial physiologic fluid is seen;
2. the pericardial space is occupied by fibrotic tissue;
3. there is no physiologic “sliding” of the pericardium on the epicardium during the cardiac cycle (compare to normal pericardial physiology in Figure 11).

>剑下4腔图（图8-9）可以清晰看到右心腔侧壁处心包的具体解剖结构和功能（白色箭头）：

  1. 心包内未见生理性液体;
  2. 心包腔被纤维化组织占据;
  3. 在心动周期中，心包在心外膜上没有生理性“滑动”(与图11中的正常心包生理性相比)。
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