11.7 T MRI; 11.7T, 11.7 Tesla; 3T, 3 Tesla; Atherosclerosis; BSA, bovine serum albumin; CI, confidence interval; CTA, computed tomography angiography; Carotid plaque; Classification; FA, flip angle; FOV, field of view; GE3D, gradient echo three dimensional; HRP, horse radish peroxidase; ICA, internal carotid artery; IPH, intra-plaque hemorrhage; LRNC, lipid rich necrotic core; MRI, magnetic resonance imaging; OCT, optimal cutting temperature; Plaque components; RF, radio frequency; ROI, region of interest; SD, standard deviation; T1 maps; T1w, T1 weighted; T2*maps; T2*w, T2 star weighted; TBS, tris-buffered saline; TE, echo time; TIA, transient ischemic attack; TR, repetition time; ms, millisecond