Blood is supplied to the brain, face, and scalp via two major sets of vessels: the right and left [[common carotid artery]] and the right and left [[vertebral artery]]
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Visualization of [[cerebral]] [[vessel]]s, their branches, and the surrounding [[structure]]s are essential during [[cerebrovascular surgery]]. [[Indocyanine green videoangiography]]  is a commonly used technique in cerebrovascular surgery.