目的　探讨CT和MR在颅内动脉瘤诊断中的价值。方法　分析 96例颅内动脉瘤 (AN)的CT和MR征象 ,影响因素及确诊率。结果　CT和MR可显示AN的直接及间接征象 ,在无创条件下提高了颅内AN的诊断率。结论　CT和MR检查具有简捷快速 ,无创和较可靠的优点 ,对颅内AN的诊断有很大的实用价值 ,特别是巨大的有血栓的AN的诊断优于DSA。 Objective To investigate the value of CT and MR in the diagnosis of intracranial aneurysms. Methods 96 cases of intracranial aneurysms (AN) CT and MR signs, the influencing factors and the diagnosis rate. Results CT and MR showed the direct and indirect signs of AN, which improved the diagnostic rate of intracranial AN in noninvasive conditions. Conclusion CT and MR have the advantages of simple, rapid, noninvasive and reliable, and have great practical value for the diagnosis of intracranial AN. Especially, the diagnosis of huge thrombus AN is superior to DSA.