2 doctors weighed in:

Could a CT scan without contrast show an aneurysm?

2 doctors weighed in
Dr. Craig Carter
Surgery - Thoracic
1 doctor agrees

In brief: 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.

In brief: 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.
Dr. Craig Carter
Dr. Craig Carter
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