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目的探讨ＣＴ所示蛛网膜下腔出血中四叠体池积血对颅内动脉瘤定位诊断的临床意义。方法：统计分析了５８例经手术证实为颅内动脉瘤破裂患者的ＣＴ及ＤＳＡ资料。结果：２０例后向血流动脉瘤组中四叠体池积血１３例，无积血７例；经χ２检验，与３８例上前向血流动脉瘤组中四叠体池积血１４例，无积血２４例有显著差异，Ｐ＜０．０５。结论：蛛网膜下腔积血是ＣＴ诊断颅内动脉瘤的重要依据，而四叠体池积血对后向血流动脉瘤定位诊断具有临床意义
Objective To investigate the clinical significance of the diagnosis of intracranial aneurysms by quadrigeminal hemorrhage in subarachnoid hemorrhage by CT. Methods: The CT and DSA data of 58 cases with ruptured intracranial aneurysms confirmed by surgery were statistically analyzed. Results: Twenty blood flow aneurysm group in 20 cases of quadrigeminal hemorrhage in 13 cases, no hematoma in 7 cases; by χ2 test, and 38 cases of forward flow aneurysm in the quadrigeminal hematuria 14 Cases, no hemorrhage in 24 cases were significantly different, P <0.05. Conclusion: Subarachnoid hemorrhage is an important basis for the diagnosis of intracranial aneurysms by CT, and the quadrigeminal hemorrhage is of clinical significance in the location diagnosis of posterior flow aneurysm