نتایج جستجو برای: carotid wall vibrations
تعداد نتایج: 231606 فیلتر نتایج به سال:
Introduction: In this study, a non-invasive method based on consecutive ultrasonic image processing is introduced to assess time rate changes of the carotid artery wall displacement, velocity and acceleration in the longitudinal direction. The application of these parameters to discriminate healthy and atherosclerotic arteries was evaluated. Methods: Longitudinal displacement rate of common car...
OBJECTIVE To assess the feasibility and potential diagnostic usefulness of arterial ultrasonography in Takayasu's arteritis. METHODS The total wall, intimal + medial, and adventitial thickness of the common carotid, subclavian and common femoral arteries, and of the abdominal aorta, were examined by B mode ultrasonography in 16 patients with Takayasu's arteritis and 16 healthy control subject...
PURPOSE To compare black-blood multicontrast carotid imaging at 3T and 1.5T and assess compatibility between morphological measurements of carotid arteries at 1.5T and 3T. MATERIALS AND METHODS Five healthy subjects and two atherosclerosis patients were scanned in 1.5T and 3T scanners with a similar protocol providing transverse T1-, T2-, and proton density (PD)-weighted black-blood images us...
BACKGROUND AND PURPOSE B-mode measurement of the carotid intima-media (IM) thickness (T) based on manual tracing (MT) procedures are dependent on the subjectivity of the reader and the existing automatic tracing procedures often fail to detect the IM boundaries accurately. The purpose of this study was to compare the tracing results of the IM boundaries of the carotid wall with a new automatic ...
OBJECTIVES The present study was designed to assess whether a diuretic- or an angiotensin-converting enzyme inhibitor-based treatment can reduce arterial wall hypertrophy of a distal muscular medium-sized artery--the radial artery--and the stiffness of a proximal large elastic artery--the common carotid artery. BACKGROUND Large-artery wall thickness and stiffness are increased during sustaine...
conclusions high prevalence of the increased cimt in patients undergoing cabg highlights the significance of cimt measurement in early diagnosis of the systemic atherosclerosis. moreover, although traditional cardiovascular risk factors were important they could not explain the extension and the severity of cimt. it seems that some ultrasonographic features such as the associated carotid plaque...
BACKGROUND AND PURPOSE Because atherosclerosis is a systemic disease, presence and composition on 1 location may relate to ischemic events in distant locations. We examined whether carotid atherosclerotic wall thickness, stenosis, and plaque composition are related to history of ischemic stroke and coronary heart disease (CHD). METHODS From the population-based Rotterdam Study, 1731 asymptoma...
The results of an experimental and theoretical investigation of the influence of wall vibrations on the sound of brass wind instruments are presented. Measurements of the transmission function and input impedance of a trumpet, with the bell both heavily damped and freely vibrating, are shown to be consistent with a theory that assumes that the internal pressure causes an oscillation of the diam...
Periodontal disease is associated with endothelial dysfunction of the brachial artery and hemodynamic alterations of the common carotid artery. Periodontal therapy improves endothelial function. It is not known if it is able also to improve the hemodynamics of the carotid artery. The aim of the current study was to evaluate the efficacy of 2 different periodontal treatments on carotid hemodynam...
Introduction: Atherosclerosis has been shown to be a systemic disease frequently involving multiple vascular beds . Atherosclerotic diseases occurring in carotid arteries and thoracic aorta have been demonstrated to be associated with transient ischemic attack (TIA) and stroke . Recently, Mani et al [5] reported that both carotid artery and thoracic aorta showed greater plaque burden in patient...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید