2 doctors weighed in:
What are they looking for when they perform a blood flow measurement in the brain?
2 doctors weighed in

Dr. Carl Decker
Radiology
1 doctor agrees
In brief: CT Perfusion scan
Most often this is done to determine the amount of brain that is still viable after a stroke.
If there is still viable brain, then an intervention - such as opening up a vessel or removing clot would be worth the risk. More precisely, they are determining the amount of brain at risk of dying if no intervention is performed (the ischemic penumbra).

In brief: CT Perfusion scan
Most often this is done to determine the amount of brain that is still viable after a stroke.
If there is still viable brain, then an intervention - such as opening up a vessel or removing clot would be worth the risk. More precisely, they are determining the amount of brain at risk of dying if no intervention is performed (the ischemic penumbra).
Dr. Carl Decker
Dr. Carl Decker
Thank
Get help from a real doctor now
Dr. Bennett Machanic
Board Certified, Neurology
48 years in practice
55M people helped
Continue
107,000 doctors available
Read more answers from doctors