High-grade left internal carotid artery stenosis

Discussion:

Based on the data (PSV = 736 cm/s, EDV = 264 cm/s, ICA/CCA = 11.5), the stenosis would likely be closer to 99% than the lower end of the above ranges.

A high-grade >50% left external carotid artery stenosis was seen (not shown). The right carotid arteries were unremarkable and antegrade flow was observed in both vertebral arteries (not shown).

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