此外，MRA示除基底动脉和左侧椎动脉外，其它主要大血管均未见狭窄和闭塞；
In addition, MRA showed no stenosis or occlusion of large vessels except basilar artery.
与DSA对比，MRA能够准确地显示闭塞或狭窄的大血管和代偿的不成形的弯延扭曲的侧支血管网。
In comparison with DSA, MRA could accurately show the stenosis or occlusion of cerebral arteries and tortuous collateral circulation.
结论血管内闭塞载瘤动脉是治疗颅内大、巨大型动脉瘤有效、安全的方法之一。
Conclusion Endovascularly occluding the parent-arteries with detachable balloon or GDCs is a effective and safe method of treating the large or giant intracranial aneurysms.
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