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Figure 5 Positron emission tomography (PET) images from patients with unstable carotid disease after administration of fluorine-18–labeled deoxyglucose (FDG). (A) FDG-PET (left column), computed tomography (CT) angiography (middle column), and fused (right column) images from patient with symptomatic carotid stenosis (top row) and contralateral asymptomatic carotid stenosis (bottom row). The yellow arrows highlight areas of FDG uptake corresponding to stenotic carotid plaque. (B) A graph showing FDG accumulation rate in symptomatic versus asymptomatic carotid plaques. Note that FDG uptake into symptomatic plaque was significantly higher. Modified, with permission, from original figure by Rudd et al. (39).
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