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Figure 4 | Neurovascular Imaging

Figure 4

From: Clinical trials for carotid stenosis revascularization and relation to methods of stenosis quantification

Figure 4

Shows a reformatted image from a CTA “normal-appearing” internal carotid well beyond a prominent ICA bulb stenosis, with its diameter (large arrow) narrower that the external carotid diameter nearby, implying partial collapse of the distal ICA. ICA diameter should be substantially larger than ECA diameter. Picture reproduced with permission from AJNR [12].

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