In this study, we used CT angiography (CTA) as a reference standard to demonstrate that carotid quantitative susceptibility mapping (QSM) provides accurate detection of calcified atherosclerotic plaques in the carotid arteries. Calcification is strongly diamagnetic and appears uniquely hypointense on carotid QSM. Inclusion of QSM in carotid MRI would aid characterization of carotid plaque.
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