1. Radiographic angiography of the posterior circulation.
Radiographic angiography of the posterior circulation. Bilateral vertebral arteries fuse to form the basilar artery. The ultimate branches of the basilar artery form the posterior cerebral arteries (PCAs, arrows), which supply the visual cortex. Infarctions in the PCA territories can cause cortical vision loss. Bilateral PCA infarcts as in ‘top of the basilar syndrome’ can result in cortical blindness.
John H Pula, and Carlen A Yuen Stroke Vasc Neurol 2017;2:
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