ConclusionMRI have high sensitivity to disclose intraluminal thrombus, and MRA, DSA can show size and shape of aneurysms as well as the relationship of the aneurysm neck to the parent artery clearly.

• 结论MRI对动脉瘤腔内血栓的显示具有较高的敏感性，DSA、MRA能够清晰显示动脉瘤的大小、形态以及瘤颈与载瘤动脉的关系。