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What does it mean when an mra shows the intracranial right internal carotid artery is narrowed ?

3 doctors weighed in
Dr. Paul Skudder
Surgery - Vascular

In brief: Need more info.

Narrowing of various blood vessels in the body is very common, and almost everyone over 50 will have narrowing of some vessels in their body.
This isn't necessarily dangerous.

What's patient age? Why was MRI done? Other findings on MRI? Symptoms of stroke or mini stroke (TIA)? The finding might be important, or it might be of little significance, depending to a large degree on other factors.

In brief: Need more info.

Narrowing of various blood vessels in the body is very common, and almost everyone over 50 will have narrowing of some vessels in their body.
This isn't necessarily dangerous.

What's patient age? Why was MRI done? Other findings on MRI? Symptoms of stroke or mini stroke (TIA)? The finding might be important, or it might be of little significance, depending to a large degree on other factors.
Dr. Paul Skudder
Dr. Paul Skudder
Thank
Dr. Francis Kempf
Internal Medicine - Cardiology

In brief: Depends on degree

An mra can show a area of mild to severe narrowing.
Usually this means that there is focal atherosclerosis of the vessel. The consequence of the narrowing depends on how narrow the vessel is, where the vessel is, and if there are alternative routes for blood to use to reach the area of the brain affected by the narrowed blood vessel.

In brief: Depends on degree

An mra can show a area of mild to severe narrowing.
Usually this means that there is focal atherosclerosis of the vessel. The consequence of the narrowing depends on how narrow the vessel is, where the vessel is, and if there are alternative routes for blood to use to reach the area of the brain affected by the narrowed blood vessel.
Dr. Francis Kempf
Dr. Francis Kempf
Thank
1 comment
Dr. Michael Korona
Mra often overestimates stenosis. Cta or conventional angiography may be needed to better evaluate the area.
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