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Elkton, MD
A 29-year-old female asked:

Can an mri with and without contrast detect a brain aneurysm? i have chiari 7mm and a neurofibroma at c6&c7. friend of mine had one rupture may die

2 doctor answers3 doctors weighed in
Dr. Richard Jackson
Neurology 12 years experience
Depends on the size: The best MRI study is an mra (angiogram) but even this misses aneurysms less than 3mm
Dr. Michael Chen
Neurology 23 years experience
Yes: It has to be an MRA, magnetic resonance angiogram, which looks at the blood vessels and not just the brain tissue, which would be a MRI. CTA can also be done but that involves ionizing radiation. Catheter cerebral angiography is invasive but provides the best information. For screening purposes, MRI/MRA would be the preferred test for brain aneurysms. Please refer to www.chicagoaneurysm.com
Last updated Jun 22, 2014

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