These images show exactly how blood flows into the brain arteries.

Persons with this condition have deposits of amyloid protein in the walls of the brain arteries.

If brain arteries are involved, it can cause symptoms of stroke.

One potential advantage, he said, is that unlike the clot-dissolving drugs, it does not pose a risk of bleeding in brain arteries.

If it affects your brain arteries, you may have a stroke.

After daylong tests, doctors said he had suffered a mild spasm of a brain artery and had recovered completely.

Aneurysms occur when part of a brain artery weakens and balloons.

Or, if he had suffered a heart attack, a clot within the heart might have broken off to lodge in a brain artery.

"Are we sure we're not overstressing our brain arteries?"

Its flow would be diverted into the brain artery instead of the scalp.