The vertebral-basilar system supplies the brain-stem, cerebellum and temporal and occipital lobes 2 (Fig. 1). It begins as the vertebral artery, which is the first branch of the subclavian artery.

Gonzales et al. 21 found 12 valid cases of subclavian-steal syndrome and 3 cases of vertebral-artery abnormality in 220 patients undergoing aortic-arch angiography.

Endovascular Management of Vertebral Artery Disease Cheong J Lee; Mark D Morasch Disclosures Expert Rev Cardiovasc Ther. 2011;9 (5):575-578. 0 ...

Diagnosis and Treatment of Subclavian Artery Occlusive Disease Patrick A Stone; Mohit Srivastiva; John E Campbell; Albeir Y Mousa Disclosures Expert Rev Cardiovasc Ther. 2010;8 (9):1275-1282.

Vertebral Basilar Angiogram. (Left) lateral view; (Right) AP view. This study was performed by injecting contrast into the right vertebra artery, which is well opacified. There is also some retrograde ...

These arteries unite at the base of the brain to form the basilar artery, and in a healthy person they supply up to 20% of the brain’s blood. Normally, the blood in the vertebral arteries flows ...

MRA of the Aortic Arch with Contrast Bolus. This study is complementary to the standard neck and intracranial MRA. It allows visualization of the common carotids, and especially the origin of the ...