CT所见脑池出血对急性脑外伤愈后评价

The evaluation of the prognosis of acute brain injury by cistern hemorrhage using CT findings

目的：探讨CT扫描对所见脑池出血发生机制、性质，对急性颅脑损伤愈后进行分析及评价．方法及结果：840例急性脑外伤经CT扫描，71例脑池出血，占8．4％，共152处池平均2．14处池出血．分布在左右侧裂池，大脑纵裂、环池、四叠体池、桥小脑脚池、鞍上池、脚间池等。并对脑池出血与着力部位、范围、颅内合并症进行了分析。结论：脑池出血为外伤剪应力作用所致，最易友生在脑子周围颞极．脑室诸池出血是脑干重笃损伤表现，愈合不佳。如果不合并脑干损伤，或继友伤不严重，仅有脑池出血愈后良好．

By studying the pathogene and features of cistern hemorrhage from the CT findings the evaluation was made of the prognosis of acute brain injury.Cistern hemorrhage was found by CT scanning in 71 of 840 cases of acute brain injury (8.4%). There were 152 sites of cistern homorrhage, with an average of 2.14. They were distributed in left and right cistern of lateral sulcus, interhemisheric cistem, ambient cistem, cistem of tectal lamina, cistem of pontocerebellart peduncle, suprasellar cistern and interpeduncular cistern, etc. The relation of cistem hemorrhage and position of where the head was forced, the range of injury and the complications were discussed.Cistern hemorrhage is caused by the traumatic shearing strain. It frequently occures around the brain stem,frontal pole, temporal pole and basalis cistern. Cistern hemorrhage means that the injury of brain stem is serious.If brain stem injury is not complicated or without secondary injury the prognosis is good as far as cistern hemorrhag ealone is concerned.