Search Results
Results 351 - 400 of 1499
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Matsushima Chikage - - 2007
PURPOSE: To investigate the relationship between retinal vein occlusion (RVO) and carotid artery lesions. METHODS: For patients with RVO who presented to the Ophthalmology Department of Tokyo Medical University Hospital between 2000 and 2003, carotid artery evaluation was possible on 58 eyes of 57 patients aged 51 years to 88 ...
Katano Hiroyuki - - 2007
BACKGROUND AND PURPOSE: The aim of the study was to determine whether the Agatston calcium score might be applied as a useful tool for evaluation of carotid stenosis. METHODS: A total of 124 carotid bifurcations were examined with multidetector row CT. Calcium scores were determined according to the method described ...
Xue Yunjing - - 2007
BACKGROUND: A longstanding hypothesis that correlates fluid dynamic forces and atherosclerotic disease has led to numerous analytical, numerical, and experimental studies over the years because it is very difficult to measure the hemodynamic variables of blood in vivo. PURPOSE: To investigate the technique of visualization and quantitation of hemodynamic variables ...
Mohler Emile R ER - - 2007
Cerebrovascular accident (CVA) is the third leading cause of death in North America and Europe, accounting for approximately 10-12% of all deaths.w1 CVA may have several aetiologies but is generally characterised as being either thrombotic or haemorrhagic in origin. The thrombotic causes of CVA are multiple and can be divided ...
Godia Elisa Cuadrado - - 2007
Carotid distensibility (CD) is a measure of carotid artery elasticity that has been introduced as a risk factor for cardiovascular disease. Information regarding reproducibility of sonographic CD measures is limited. The objective of this study was to evaluate the inter-reader reliability of sonographic measurements of common carotid artery (CCA) diameters ...
Hayashi Shogo - - 2007
Using semiserial sections, we histologically observed the carotid sheath and adjacent structures in 8 sides of 5 cadavers. For description, we classified the carotid sheath into 2 parts or laminae: 1) a laminar "adventitia" enclosing each of the cervical great vessels; and 2) a "common sheath" outside the adventitia. Arterial ...
Paraskevas Kosmas I - - 2007
We aimed to define the role of treatment using statins (3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors) in the management of patients with carotid artery disease. We searched PubMed for studies evaluating the effect of statins on carotid IMT and the occurrence of cerebrovascular events. Current evidence indicates that routine statin therapy ...
Tresukosol Damras - - 2007
Percutaneous transluminal carotid artery stenting (CAS) is a promising new treatment option for carotid artery stenosis. These procedures are currently performed in high-risk patients and have demonstrated favorable outcomes. We described the use of intravascular ultrasound (IVUS) to facilitate internal carotid artery stenting in a patient with heavily calcified and ...
Pinter Alexandra - - 2007
We have shown previously that TGA (transposition of great arteries) is associated with increased carotid artery stiffness. It has been established that stiffening of the barosensory vessel wall results in reduced baroreceptor activation and impaired BRS (baroreflex sensitivity). In the present study we tested the hypothesis that the increased carotid ...
Brennan Peter A - - 2008
Vascular disease, which can be asymptomatic until arterial stenosis is severe, is common in head and neck cancer patients as the risk factors for both cancer and atherosclerosis are similar. Although studies of common and internal carotid artery stenosis in head and neck patients have been reported, none have specifically ...
Arbel Y - - 2007
BACKGROUND: Carotid intimal medial thickening (c-IMT) is an established surrogate marker for atherosclerosis. There have been sporadic reports about an increase of c-IMT on the left carotid artery among populations with a mean age of +/-50 years. OBJECTIVE: The purpose of this study was to evaluate whether there is a ...
Tsutsumi Masanori - - 2007
Carotid artery stenting for carotid bifurcation stenosis usually uses the transfemoral approach. However, in patients with proximal common carotid artery (CCA) stenosis, the guiding catheter is difficult to introduce into the narrow origin of the CCA without risking cerebral embolization before activation of the protection device. A technique of cerebral ...
Paraskevas Kosmas I - - 2007
The aim of this article is to investigate the association between internal carotid artery occlusion (ICAO) and the presence of atherosclerotic disease and vascular risk factors. The clinical characteristics and risk factors of 120 patients presenting with ICAO were retrospectively reviewed. All patients (n = 120) had at least 1 ...
Anu V R - - 2007
INTRODUCTION: Developmental anomalies in the origin and branching pattern of the external carotid artery are not common. The level of the bifurcation of the common carotid artery and also the variations in the origin/branching pattern of the external carotid artery are well known and documented. METHODS: The variations in the ...
Pereira Filho Arthur de Azambuja Ade - - 2007
Intracranial "kissing" carotid arteries are a rare variant of the carotid arteries, where both internal carotid arteries deviate medially and touch each other near the midline within the sphenoid sinus or the sphenoid bone, including the sella. This anomaly is particularly important since it may cause or mimic pituitary disease ...
Kumagai Masahiro - - 2007
Panoramic dental radiographs are commonly used in general dentistry and oral and maxillofacial surgery to examine upper and lower teeth, maxilla, mandible and the surroundings simultaneously. Carotid artery calcification, a specific indicator of atherosclerotic change of the carotid arteries, can be seen on the radiographs. Many studies have suggested that ...
Jones Pamela J - - 2007
Carotid artery disease (CAD) can cause strokes or even death. Fortunately, some of the risk factors for CAD can be controlled, and the disease can be prevented, slowed or reversed. This article reviews those risk factors, along with normal and abnormal carotid artery anatomy, techniques for imaging the carotid arteries, ...
Sheiman Robert G - - 2007
OBJECTIVE: The purpose of this study was to determine whether selection criteria for performing carotid sonographic screening before elective coronary artery bypass graft surgery can decrease the number of negative examinations without overlooking patients with significant carotid disease. SUBJECTS AND METHODS: A history of peripheral vascular disease, a prior cerebrovascular ...
Martin Kirt - - 2007
INTRODUCTION: A previous study demonstrated the efficacy of a phospholipid (PL) complexed with a protein (apoAI Milano) in causing 4.6% regression of atheroma volume as assessed by intravascular ultrasonography (IVUS) in a group of 47 patients with carotid atherosclerosis. The results of this study raised the question of whether the ...
Polat Kemal - - 2007
Carotid Artery Doppler Signals were recorded from 114 subjects, 60 of whom had Atherosclerosis disease while the rest were healthy controls. Diagnosis of Atherosclerosis from Carotid Artery Doppler Signals was conducted using Fuzzy weighted pre-processing and Least Square Support Vector Machine (LSSVM). First, in order to determine the LSSVM inputs, ...
Altaf Nishath - - 2007
BACKGROUND AND PURPOSE: Carotid intraplaque hemorrhage (IPH), known to be associated with plaque instability, may convey a higher stroke risk. The aim of this study was to assess whether the identification of IPH by MRI predicts recurrent clinical cerebrovascular events. METHODS: Sixty-six patients with high-grade symptomatic carotid stenosis underwent MRI ...
Zhang Le-Ning - - 2007
BACKGROUND: Angiotensin II (Ang II) promotes atherosclerotic vascular diseases, in which proinflammatory and proliferative effects play a major pathogenic role. Ang II up-regulates chemokines, such as monocyte chemoattractant protein (MCP)-1 and macrophage inflammatory protein (MIP)-1alpha, which are important pro-inflammatory factors mediating infiltration of inflammatory cells into atherosclerotic lesion. The aim ...
Martens Fabrice M A C - - 2008
INTRODUCTION: Insulin resistance is generally considered to be of major importance in the pathophysiology of the metabolic syndrome and type 2 diabetes mellitus, both high-risk conditions for cardiovascular complications. Carotid artery stiffness is increasingly recognized as an important predictor of cardiovascular morbidity and mortality. Therefore, in the present study we ...
Tanner Felix C - - 2007
OBJECTIVE: Nitric oxide (NO) inhibits thrombus formation, vascular contraction, and smooth muscle cell proliferation. We investigated whether NO release is enhanced after endothelial NO synthase (eNOS) gene transfer in atherosclerotic human carotid artery ex vivo. METHODS AND RESULTS: Western blotting and immunohistochemistry revealed that transduction enhanced eNOS expression; however, neither ...
Zheng J W - - 2007
The aim of this study was to analyse the experience at a single institution in carotid artery resection with or without reconstruction performed as part of an oncological procedure or emergency haemostasis. A total of 28 patients were included in this retrospective study; 17 underwent ligation or resection of the ...
Ikeda Koei - - 2007
The use of steroids to successfully treat a 75-year-old woman with fibrosing mediastinitis and sclerosing cervicitis causing a stricture of the left common carotid artery is reported. Biopsy specimens showed collagenous fibers and fibroblasts with moderate infiltration of lymphocytes. The mediastinal and neck lesions were significantly reduced, with almost complete ...
Ashrafian Hutan - - 2007
Clinical examination of the carotid arterial system has traditionally been used as a non-specific screening tool of atherosclerotic pathology. Because it has not yet been shown to delineate the precise location and grade of stenosis, further imaging modalities, such as duplex ultrasound, digital subtraction angiography, computed tomography and magnetic resonance, ...
Bozorgmanesh Alireza - - 2007
Budd-Chiari syndrome (BCS) denotes a heterogeneous group of diseases characterized by hepatic venous outflow obstruction at the level of the hepatic veins or inferior vena cava resulting in portal hypertension. Traditional approach to treatment of BCS involves systemic thrombolysis and surgical portosystemic shunt or transjugular intrahepatic portosystemic shunt in progressive ...
Ecanow Jacob S - - 2007
We report a case of chronic critical limb ischemia (CLI) due to occlusive tibial artery disease that we treated with an excimer laser with good clinical results. The current status of laser technology in the treatment of infrainguinal arterial disease is reviewed, and our approach to the use of this ...
Chahwan Santiago - - 2007
Correlation of carotid duplex ultrasound (DUS) flow velocities with carotid artery stenosis before and after carotid endarterectomy is well established. With the evolution of catheter-based techniques, carotid stenosis increasingly is being treated with angioplasty and stenting (CAS). CAS changes the physical properties of the arterial wall, which may alter blood ...
Montalcini Tiziana - - 2008
BACKGROUND AND PURPOSE: It is recognized that arteries can enlarge to compensate atherosclerosis. The role of diameter enlargement of unaffected arteries is not well known. We hypothesized that brachial and common carotid arteries diameters were larger in subjects with carotid atherosclerosis compared to subjects without these lesions. METHODS: We measured ...
Conforto Adriana Bastos - - 2007
The persistent hypoglossal artery (PHA) is the second most common persistent embryological carotid-basilar connection and usually represents an incidental finding in cerebral arteriograms. The hypoglossal artery connects the primordial carotid artery with the longitudinal neural arteries, which later form the basilar artery. The PHA leaves the internal carotid artery as ...
Lambert Callie C - - 2007
The path of the carotid artery and its branches through the neck is characterized through an analysis of non-contrast computed tomography (CT) scans. The distance from the vessel wall of the carotid arteries to the skin and vertebral bodies are recorded from the level of the 2nd cervical vertebrae (C2) ...
Chuang W C - - 2007
Symptoms of ipsilateral carotid artery compression secondary to an elongated styloid process or calcified stylohyoid ligament may be seen in Eagle syndrome. The patient will typically experience cervicofacial pain due to stimulation of the arterial nervous plexus. In addition, symptoms directly attributable to compression of the carotid artery may be ...
Payne Rupert A - - 2007
BACKGROUND: To examine whether augmentation index (AIx) is increased in Marfan syndrome (MFS) and associated with increased aortic root size, and whether a peripheral-to-central generalised transfer function (GTF) can be applied usefully in MFS. METHODS: 10 MFS patients and 10 healthy controls (matched for sex, age and height) were studied ...
Uwatoko Takeshi - - 2007
BACKGROUND: To determine the underlying conditions that affect the degree of calcification of carotid arterial plaques, measured quantitatively using multidetector row computed tomography (MDCT), and to study the association of carotid calcification with clinical symptomatology. METHODS: We measured the calcification volume of stenotic lesions at the carotid bifurcation using MDCT ...
Sherer Y - - 2007
Antiphospholipid and anti-oxidized LDL (anti-oxLDL) antibodies are associated with thrombosis and atherosclerosis. Rheumatoid arthritis (RA) is characterized by excess atherosclerosis and cardiovascular diseases. Our aim was to determine whether antiphospholipid and anti-oxLDL antibodies are associated with early atherosclerotic changes in RA. The levels of IgG and IgM anticardiolipin, IgG and ...
Loizou C P - - 2007
Ultrasound measurements of the human carotid artery walls are conventionally obtained by manually tracing interfaces between tissue layers. In this study we present a snakes segmentation technique for detecting the intima-media layer of the far wall of the common carotid artery (CCA) in longitudinal ultrasound images, by applying snakes, after ...
Haluska Brian A - - 2007
Non-invasive assessment of arterial pressure wave forms using applanation tonometry of the radial or carotid arteries can be technically challenging and has not found wide clinical application. 2D imaging of the common carotid arteries is routinely used and we sought to determine whether arterial waveform measurements could be derived from ...
Bartlett Eric S - - 2007
BACKGROUND AND PURPOSE: All carotid stenosis ratio methods are based on the inability of digital subtraction angiography to measure in millimeters. Each method has potential flaws. The Carotid Stenosis Index (CSI) was designed to reduce ambiguities of NASCET and ECST ratios. We test this method's ability to correctly estimate carotid ...
Varghese Anitha - - 2006
PURPOSE: To evaluate semiautomated analysis software for measuring the total carotid arterial wall volume (TWV) as a measure of atheroma burden. MATERIALS AND METHODS: Semiautomated-software and manual analyses of TWV measured by cardiovascular magnetic resonance (CMR) were compared in two phantom models, 10 subjects with no known carotid artery disease, ...
Swampillai J - - 2006
BACKGROUND: Caffeine and tobacco consumption are risk factors for heart failure, but their effects remain controversial. It has been hypothesized that they cause alterations in arterial stiffness and arterial wave travel which may increase ventricular loading. In this study the authors examined the influence of these widely used stimulants on ...
Park J H JH Division of Endocriology and Metabolism, Chonbuk National University Medical School and Research Institute of Clinical Medicine, Jeonju, Korea. - - 2006
The objectives of this study were to evaluate the prevalence of and risk factors for extracranial internal carotid artery stenosis in Type 2 diabetic patients. This study included 406 patients aged 40-79 years with Type 2 diabetes (male 55.4%, female 44.6%). Both carotid arteries of each patient were examined by ...
Barrett-Connor Elizabeth - - 2007
Detection and quantification of subclinical coronary heart disease by noninvasive imaging techniques offers the potential for earlier diagnosis with targeted prevention and therapy. This study, designed to determine the extent to which carotid artery intima-media thickness (IMT) predicts coronary artery calcium (CAC) in asymptomatic older adults, included 141 men and ...
Cheuk Bernice L Y - - 2007
OBJECTIVE: The contribution of atherosclerosis to the development of Abdominal Aortic Aneurysms (AAA) is still controversial. Ultrasound scans can detect intima-media thickening of the carotid arteries as an early sign of atherosclerosis. The aim of this study was to investigate whether patients with Abdominal Aortic Aneurysms (AAAs) have thickened carotid ...
Kiris Ilker - - 2006
The purpose of this study was to examine the relation between adiponectin levels and subclinical carotid atherosclerosis in patients undergoing coronary artery bypass grafting (CABG). Serum concentrations of adiponectin and carotid intima/media thickness (IMT) were measured in 84 consecutive patients who underwent CABG. Carotid IMT both at the common carotid ...
Lo Albert - - 2006
BACKGROUND: The correlation of the common carotid artery (CCA) bifurcation and its surrounding structures is poorly described. The aim of this study was to describe the anatomy of the CCA bifurcation relative to its surrounding structures. METHOD: We dissected a total of 67 carotid specimens from 36 embalmed cadavers. CCA ...
Anderson David E - - 2006
BACKGROUND: Anger and hostility have been implicated in the pathogenesis of heart disease, but the extent to which the large conduit arteries play an intermediate role in this relationship remains to be clarified. The present study investigated associations of anger frequency and expression style with carotid artery intima-media thickness (IMT) ...
Ooigawa Hidetoshi - - 2006
Three cases of an extremely rare anomaly of the carotid artery are described herein. In these patients, the common carotid arteries, without bifurcation in the cervical portion, supplied multiple arterial branches, which are more commonly branches of the external carotid artery. The non-bifurcating carotid artery continued into the cranium as ...
Lacolley P - - 2006
The primary objective of this study was to determine whether circulating factors gain direct access to and affect the activity of vagal afferent cell bodies in the nodose ganglia and glossopharyngeal afferents cell bodies in the petrosal ganglia, of the rat. We found that the occipital and internal carotid arteries ...
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