نتایج جستجو برای: carotid artery wall

تعداد نتایج: 391699  

2013

The characteristics of physiological blood flow in human carotid arterial bifurcation model have been numerically studied using a fully coupled fluid-structure interaction (FSI) analysis. This computational model with the fluid-structure interaction is constructed to investigate the flow characteristics and wall shear stress in the carotid artery. As the flow begins to decelerate after the peak...

Journal: :iranian journal of radiology 0
toshinori iwai department of oral and maxillofacial surgery, graduate school of medicine, university of yokohama city, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-457872659, [email protected]; department of oral and maxillofacial surgery, graduate school of medicine, university of yokohama city, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-457872659, [email protected] toshiharu izumi department of radiology, university and hospital of yokohama city, japan tomio inoue department of radiology, university and hospital of yokohama city, japan jiro maegawa department of plastic and reconstructive surgery, university and hospital of yokohama city, japan nobukazu fuwa department of radiation oncology, southern tohoku proton therapy center, southern tohoku research institute of neuroscience, japan kenji mitsudo department of oral and maxillofacial surgery, graduate school of medicine, university of yokohama city, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-457872659, [email protected]

variation of the branches of the external carotid artery (eca) is well known, but it is extremely rare for the occipital artery (oa) to arise from the internal carotid artery (ica). a 87-year-old man was found to have this anatomical variation on the right side by threedimensional computed tomography angiography for vascular mapping of the carotid arteries before superselective intra-arterial c...

Journal: :Hypertension 2010
Noortje T L van Duijnhoven Daniel J Green Dieter Felsenberg Daniel L Belavy Maria T E Hopman Dick H J Thijssen

Physical inactivity is a potent stimulus for vascular remodeling, leading to a marked decrease in conduit artery diameter. However, little is known about the impact of physical inactivity on artery wall thickness or wall:lumen ratio or the potential of exercise countermeasures to modify artery wall thickness. The purpose of the study was to examine the impact of 60 days of bed rest, with or wit...

2010
Noortje T.L. van Duijnhoven Daniel J. Green Dieter Felsenberg Daniel L. Belavý Maria T.E. Hopman Dick H.J. Thijssen

Physical inactivity is a potent stimulus for vascular remodeling, leading to a marked decrease in conduit artery diameter. However, little is known about the impact of physical inactivity on artery wall thickness or wall:lumen ratio or the potential of exercise countermeasures to modify artery wall thickness. The purpose of the study was to examine the impact of 60 days of bed rest, with or wit...

ژورنال: دانشور پزشکی 2009
رهگذر, سعید , مختاری‌دیزجی, دکتر منیژه , معرفت, دکتر مهدی ,

  Background & Objective : Several indices have been introduced to estimate arterial stiffness that based on changes in brachial blood pressure. But because of the error resulted by the substitution of brachial blood pressure instead of the other central arteries, such as carotid, it will be very important to present elastic parameter based on the mechanical models without any emphasis on brach...

2005
George Howard Richey Sharrett Gerardo Heiss Gregory W. Evans Gregory L. Burke

Background and Purpose: B-mode ultrasound is a widely used technique for the clinical and epidemiological assessment of carotid atherosclerosis. This article provides a description of the distribution of carotid atherosclerosis in the general population. Methods: Intimal-medial arterial wall thickness was measured by B-mode real-time ultrasound as an index of atherosclerotic involvement in the ...

Journal: :Clinical science 1997
T J Smilde H Wollersheim H Van Langen A F Stalenhoef

1. The reproducibility of measurements of the arterial wall thickness in both the carotid and femoral artery was investigated by means of high-resolution B-mode ultrasonography. For this purpose, subjects with normal and increased intima-media thickness were selected. Images were stored on an optical disk and were analysed with a semi-automatic software program by two readers. Individuals were ...

2016
Ruchika Bhatia Sharda Vashisth Renu Saini

Atherosclerosis is a disease caused due to formation of plaque into the artery. Increase in plaque affects the wall shear stress. The present study is performed to calculate wall shear stress in different geometries of stenosed carotid artery. A 2D model of different geometries is generated using CFD for NonNewtonian model. After this WSS of different geometries of stenosed arteries is calculat...

Journal: :Stroke 1993
G Howard A R Sharrett G Heiss G W Evans L E Chambless W A Riley G L Burke

BACKGROUND AND PURPOSE B-mode ultrasound is a widely used technique for the clinical and epidemiological assessment of carotid atherosclerosis. This article provides a description of the distribution of carotid atherosclerosis in the general population. METHODS Intimal-medial arterial wall thickness was measured by B-mode real-time ultrasound as an index of atherosclerotic involvement in the ...

Journal: :iranian journal of medical physics 0
s. rahgozar m.sc. in mechanical engineering, mechanical engineering dept., kashan university, kashan, iran. m. maerefat assistant professor, mechanical engineering dept., tarbiat modarres university, tehran, iran. m. mokhtari-dizaji associate professor, medical physics dept., tarbiat modarres university, tehran, iran.

introduction: arterial stiffness is an important predictor of cardiovascular risk. several indices have been  introduced to estimate the arterial stiffness based on the changes in the brachial blood pressure. since the  substitution  of  the  blood  pressure  changes  in  the  central  arteries  such  as  carotid  with  the  blood  pressure  changes in the brachial results in error in the blood...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید