Table 1.
Baseline demographic characteristics of study population (77 patients).
Table 2.
Demographic variables in the group of patients with MRI-defined stable and unstable lesion types.
Figure 1.
Example of lesion type IV–V in the right internal carotid artery.
Lesion type IV–V is characterized by a lipid-rich necrotic core; (←) indicates carotid plaque. The lipid-rich necrotic core shows low- to iso-signal intensity on TOF, T1w, PDw, and T2w images. Original magnification ×25.
Figure 2.
Example of lesion type VI in the left internal carotid artery.
Lesion type VI is characterized by intraplaque hemorrhage; (*) indicates the lumen of the carotid artery; (←) indicates carotid plaque. Intraplaque hemorrhage shows high signal intensity on T1w, TOF, PDW, and T2w images. Original magnification ×25.
Figure 3.
Kaplan–Meier survival estimates of the proportion of patients free of ipsilateral cerebrovascular events for patients presenting with stable MRI lesion types (upper curve) and with unstable MRI lesion types (lower curve). Event-free survival was higher among patients with the MRI-defined stable lesion types (III, VII, and VIII) than in patients with the MRI-defined high-risk lesion types (IV–V and VI) (log rank test P<0.0001).