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

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
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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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