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A member asked:
Could a ct scan without contrast show an aneurysm?
A doctor has provided 1 answer
Yes: The contrast is to show blood flow. While some aneurysms have wall to wall flow, most are lined by thrombus, with only the central portion of the aneurysm showing flow. The CT scan can show the wall of the vessel, as well as flow. An arteriogram only shows flow.
Answered 6/2/2017
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