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Vertebral Angiogram-AP projection, early image

The bones have been subtracted from this image. The contrast has been injected from a catheter placed into the right vertebral artery. Both the right and left vessels originating from the basilar artery will be opacified with either a right or left vertebral injection, and contrast often refluxes down the contralateral vertebral artery.

Identify the following:

1. right vertebral artery

2. basilar artery

3. right posterior cerebral artery

4. right superior cerebellar artery

5. right anterior inferior cerebellar artery

6. right posterior inferior cerebellar artery

7. left posterior cerebral artery

8. left superior cerebellar artery

9. left vertebral artery

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