1·Objective: To investigate the change of cisterna ambiens with severe craniocerebral trauma and its clinical significance.
目的：探讨环池在重型颅脑损伤中的变化及其临床意义。
2·Conclnsion: the cisterna longitudinal cerebrum and cisterna fossae lateralis cerebri was increasing after50years old.
结论：50岁以后大脑纵裂池和大脑外侧窝地明显增大。
3·The changes of cisterna in abnormal group were observed simultaneously.
病变组同时观察主要脑池的改变。