Figure 1

Shows axial TOF, T1 weighted pre- and post-contrast and T2 weighted high-resolution black-blood CMR and CTA (lower right) images of an ulcerated plaque in the right internal carotid artery of an 87-year old male patient with an acute ischemic stroke in the territory of the right middle cerebral artery. Note the clearly ulcerated plaque surface on both CMR and CTA images as well as the hypersignal of the plaque in TOF and T1 weighted images corresponding to intraplaque hemorrhage (arrow). A lack of contrast enhancement within the plaque indicates the presence of a lipid-rich necrotic core. CTA shows a non-calcified plaque with relatively hypodense plaque interior (mean plaque density =34,5HUarrowhead).