نتایج جستجو برای: carotid stenosis
تعداد نتایج: 106081 فیلتر نتایج به سال:
BACKGROUND Carotid atherosclerotic plaque rupture is an important source of ischemic stroke. However, the prevalence of high-risk plaque (HRP) defined as plaques with luminal surface disruption, a lipid-rich necrotic core occupying >40% of the wall, or intraplaque hemorrhage in Chinese population remains unclear. This study uses carotid magnetic resonance imaging (CMRI) to investigate HRP preva...
BACKGROUND Atherosclerotic carotid disease represents approximately 20% of the causes of ischemic stroke. Effective treatment options, such as endovascular or surgical revascularization procedures, are available. Doppler Ultrasound (DUS) is a non-invasive, inexpensive, routine exam used to evaluate the presence of internal carotid artery (ICA) stenosis. We retrospectively analysed the prevalenc...
Background and Purpose The importance of carotid plaque ulceration as a cause of cerebral ischemic symptoms remains uncertain. Moreover, its prominence in symptomatic patients with severe carotid stenosis is unknown. Methods The association between angiographically denned plaque ulceration and risk of subsequent stroke was assessed using Cox proportional hazards regression in 659 patients with ...
PURPOSE The degree of stenosis is an important biomarker in assessing the severity of cardiovascular disease. The purpose of our work is to develop and evaluate a semiautomatic method for carotid lumen segmentation and subsequent carotid artery stenosis quantification in CTA images. METHODS The authors present a semiautomatic stenosis detection and quantification method following lumen segmen...
OBJECTIVE As a vascular risk factor, carotid atherosclerosis is crucial to cognitive impairment. While carotid intima-media thickness, carotid artery plaque, and carotid stenosis can reflect carotid atherosclerosis in different stages, this review aimed to explore researches on the role of carotid intima-media thickness, carotid artery plaque, and carotid stenosis in the progress of cognitive i...
BACKGROUND AND PURPOSE The European Carotid Surgery Trial (ECST) and North American Symptomatic Carotid Endarterectomy Trial (NASCET) have shown that endarterectomy reduces the risk of stroke in certain patients with recently symptomatic carotid stenosis. However, they differed in the degree of stenosis above which surgery was reported to be effective. This disparity has led to inconsistent cli...
Managing patients scheduled for cardiac surgery with significant carotid artery disease is a controversial issue that usually produces very polarized opinions, even in the literature. Discussion focuses on determining if carotid disease, concomitant with the need for coronary artery bypass, is an important etiologic factor for post-surgical stroke, or simply a marker of increased risk of vascul...
Introduction: In selecting patients for carotid revascularization, relying solely on symptoms and/or degree of stenosis is not sufficient. Patients with severe stenosis often remain asymptomatic, while other patients with moderate stenosis experience stroke. In contemporary practice, surgery or intervention is carried out much more often in asymptomatic patients. With the advent of improved med...
INTRODUCTION Combined endovascular interventions on carotid and coronary arteries are rare. Stenting of the unprotected coronary left main stem is a high risk procedure. We presented hemodynamically unstable patient with combined carotid artery and left main stem coronary artery stenting. CASE REPORT A 78-year-old female patient was admitted to our institution for right carotid endaterectomy....
BACKGROUND AND PURPOSE von Willebrand factor propeptide (VWF:Ag II) is potentially a more sensitive marker of acute endothelial activation than von Willebrand factor antigen (VWF:Ag). These biomarkers have not been simultaneously assessed in asymptomatic versus symptomatic carotid stenosis patients. The relationship between endothelial activation and cerebral microembolic signals (MESs) detecte...
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