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The area under the curve graphs from receiver-operating characteristic analysis represent the strength of stenosis, percent wall volume (PWV), and mean wall thickness (MWT) in classifying presence or absence of carotid calcification (A), lipid-rich necrotic core (B), intraplaque hemorrhage (C), and surface disruption (D). These graphs indicate that stenosis, PWV, and MWT are strong classifiers for each carotid atherosclerotic feature.
