Abstract
This study sought to investigate the relationship of atherosclerosis between intracranial and extracranial carotid arteries using three-dimensional multicontrast magnetic resonance (MR) vessel wall imaging. Patients with recent cerebrovascular symptoms in anterior circulation were recruited and underwent MR vessel wall imaging for intracranial and extracranial carotid arteries. The plaque burden, including maximum wall thickness (Max WT) and stenosis, and presence of intraplaque hemorrhage (IPH) were assessed. The correlation of the plaque characteristics between intracranial and extracranial carotid arteries was determined. In total, 107 patients (mean age: 57.0 ± 11.1 years, 69 males) were recruited. In discriminating intracranial severe stenosis (≥50% stenosis), the odds ratio (OR) of Max WT of extracranial carotid arteries was 1.41 (95% confidence interval [CI], 0.94-2.11, P = 0.095) and 1.72 (95% CI, 1.04-2.83, P = 0.034) before and after adjusting for confounding factors, respectively. The OR of stenosis of extracranial carotid arteries with increment of 10% was 1.26 (95% CI, 0.99-1.60, P = 0.054) and 1.37 (95% CI, 1.03-1.82, P = 0.033) before and after adjusting for confounding factors, in discriminating intracranial sev...Continue Reading
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