PA angiograms.
A, View of a left vertebral artery. Both posterior cerebral arteries are opacified, and via the posterior communicating arteries, so are the bilateral anterior and middle cerebral arteries. Arrow indicates the right posterior cerebral artery.
B, View of the microcatheter (arrows) in the right posterior cerebral artery obtained during coil deposition.
C, View of the left vertebral artery after coil embolization of the right posterior cerebral artery.