The investigation of ischemic stroke etiology is commonly limited to the heart and extracranial vessels. Nevertheless, the diagnosis of intracranial stenosis may carry important therapeutic implications. The aims of this study were to determine the prevalence and clinical predictors of intracranial atherosclerotic stenosis (ICAS) in a sample of patients with ischemic stroke.Consecutive patients admitted to a university-based outpatient stroke clinic underwent CT angiography of the intracranial and extracranial brain vessels. Clinical, demographic, and laboratory characteristics were compared between patients with increasing levels of stenosis. Ankle-brachial index (ABI) was measured to quantify peripheral arterial disease, defined as an ABI less than or equal to .9. Multivariable ordinal logistic regression was constructed to predict increasing stenosis grades (none, 1

作者：Nestor, Barreto-Neto；Alexandre D, Barros；Pedro A P, Jesus；Carolina C, Reis；Morgana L, Jesus；Isadora L O, Ferreira；Rodrigo D, Fernandes；Lucas L, Resende；Alisson L, Andrade；Beatriz M, Gon?alves；Lais M B, Ventura；Adriano A, Jesus；Luana F, Fonseca；Mila C, Mueller；Jamary, Oliveira-Filho

来源：Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2016 年 25卷 6期