OBJECTIVES We aimed to define the relationship between cerebral atherosclerosis and stroke after coronary artery bypass grafting (CABG). BACKGROUND Although cerebral atherosclerosis may play a crucial role in the advent of post-CABG stroke, only extracranial carotid artery disease has been extensively studied, and the effects of atherosclerosis on the mechanisms underlying post-CABG stroke re...

The intracranial cavity experiences complex biological as well as fluid-mechanical interactions. There, brain, blood and cerebrospinal fluid (CSF) cooperate to preserve the homeostasis of the central nervous system (CNS). The brain and spinal cord float within a bath of CSF that is pressurized with respect to the atmosphere. In healthy conditions, circulation of blood and CSF minister the optim...

Introduction 7T ToF-MRA has proven to depict the major intracranial arteries in humans with a quality comparable or better than 3T or 1.5T magnets [1]. Ultrahigh field ToF-MRA has also allowed for the visualization of a larger number of the small intracranial arteries that were either not visualized or seen less clearly with lower field strength magnets [2]. The purpose of this study was to eva...

Intracranial atherosclerotic disease is normally detected by hemodynamically relevant intracranial stenosis using luminography-based methods. However, from the extracranial study, it is well known that lumen diameter can be maintained due to remodeling of the arteries in spite of wall thickening (Glagov et al., 1987), suggesting conventional luminography-based methods might underestimate athero...

RATIONALE Cervicocephalic artery dissections, once considered a rare disease, have become increasingly recognized as a cause of stroke in young and middle-aged individuals. Early diagnosis is mandatory because anticoagulation or antithrombotic therapy can help prevent primary or secondary ischemic events. However, the diagnosis is still a crucial challenge for radiologists and neurologists. P...

Abstract: A chronic, occlusive cerebrovascular illness known as Moya Moya, sometimes “hazy puff of smoke,” involves bilateral stenosis or occlusion the proximal sections anterior cerebral arteries and Middle Cerebral Arteries (MCAs) well terminal portion Internal Carotid (ICAs). The internal carotid artery becomes progressively occluded stenotic in an idiopathic illness. 34 year old woman with ...

BACKGROUND The severity of ischemic stroke symptoms varies among patients and is a critical determinant of patient outcome. To date, the association between the number of stenotic intracranial arteries and stroke severity remains unclear. AIMS We aimed to investigate the association between the number of stenotic major intracranial arteries (NSMIA) and ischemic stroke severity, as well as the...

A 6-year-old neutered male German shepherd dog was evaluated for obtundation, blindness, and bilateral exophthalmos. magnetic resonance imaging scan of the brain performed identified an arteriovenous malformation (AVM) with several feeding arterial branches, venous drainage through cavernous sinus. Venous vessels rostral to AVM were severely distended extended into retrobulbar spaces. Liquid em...

BACKGROUND AND PURPOSE Transcranial color-coded duplex sonography (TCCD) is a diagnostic technique for evaluation of intracranial arteries in patients with acute stroke. Echo-enhancing contrast agents (EEAs) are necessary to visualize intracranial vessels in up to 30% of patients because of limited acoustic bone windows. In this study, we assessed the diagnostic efficacy of echo-enhanced TCCD (...

BACKGROUND AND PURPOSE Preliminary studies suggest that intracranial arteries are capable of accommodating plaque formation by remodeling. We sought to study the ability and extent of intracranial arteries to remodel using 3-dimensional high-resolution black blood magnetic resonance imaging and investigate its relation to ischemic events. METHODS Forty-two patients with cerebrovascular ischem...