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通过对５５例脑血管磁共振血管造影（ＭＲＡ）和动脉数字减影血管造影（ＩＡ－ＤＳＡ）的对比分析，探讨了ＭＲＡ在颅内血管病变诊断中的可靠性。结果表明，ＭＲＡ可以对４８例患者做出正确诊断，结合常规ＭＲＩ和ＭＲＡ原始切层图像，其敏感性为９０．９％。对动脉瘤的敏感性为８７．５％，动静脉畸形为７８．６％。３例血管狭窄闭塞性病变和１例脑膜瘤患者的血管改变也与ＤＳＡ完全符合。可以认为，作为一种常规筛选工具，ＭＲＡ用于脑血管病变的检查和诊断，具有安全、可靠和方便的优点。
The reliability of MRA in the diagnosis of intracranial vascular lesions was discussed by comparing and analyzing 55 cases of cerebral vascular magnetic resonance angiography (MRA) and arterial digital subtraction angiography (IA-DSA). The results showed that MRA can make the correct diagnosis of 48 patients, combined with conventional MRI and MRA original slice images, the sensitivity was 90.9%. Aneurysm sensitivity was 87.5%, arteriovenous malformations 78.6%. Vascular changes in 3 patients with vascular stenosis and 1 patient with meningioma were also completely consistent with DSA. It can be considered, as a routine screening tool, MRA for the detection and diagnosis of cerebrovascular disease, with the advantages of safety, reliability and convenience.