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55 results for “Artery”
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Research ArticleOpen accessEvery word in the titleThree-Dimension Coronary Artery Tree Curvature ConfirmationHassan H. Khalil, Rahmita O.K. Rahmat, D. M. Zamrin et al.Problem statement: Three-Dimension (3D) reconstruction is one of the vital and robust tools that provide aid in many fields, especially medicine. This article is about 3D shape similarity and it presents a comparison approach between principal curvature methods of 3D output. Our approach follows the concept of using the gray scale value as the z dimension and the other approach … …Journal of Computer Science, Vol. 6, Issue 12 · 30 Nov 2010 · 7,767 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThree Dimension Reconstruction of Coronary Artery Tree Using Single-View CineangiogramHassan H. Khalil, Rahmita O.K. Rahmat, D. M. Zamrin et al.Problem statement: Whereas most of the conventional techniques propose using multiview cineangiograms to reconstruct 3D objects this article proposes to integrate a Three Dimension (3D) model of the coronary artery tree using a standard single-view cineangiogram. Splitting the cineangiograms into non-sequenced and different angle views is how the data is supplied in this method. Each single view can be used … …Journal of Computer Science, Vol. 6, Issue 12 · 22 Nov 2010 · 8,028 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleWall Shear Stress Distribution in Patient Specific Coronary Artery BifurcationVahab Dehlaghi, Frank GijsenProblem statement: Atherogenesis is affected by hemodynamic parameters, such as wall shear stress and wall shear stress spatial gradient. These parameters are largely dependent on the geometry of arterial tree. Arterial bifurcations contain significant flow disturbances. Approach: The effects of branch angle and vessel diameter ratio at the bifurcations on the wall shear stress distribution in the coronary arterial tree … …American Journal of Applied Sciences, Vol. 7, Issue 9 · 30 Sep 2010 · 7,365 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Stent Geometry on Phase Shift between Pressure and Flow Waveforms in Stented Human Coronary ArteryVahab Dehlaghi, Siamak Najarian, Mohammad Tafazzoli ShadpourShear stress is known to play a central role in restenosis formation and is sensitive to stent geometry. Alterations of the phase shift between pressure and flow waveform created by a different stents were studied to compare the hemodynamic effects of stent design properties on restenosis in stented human coronary artery. Blood pressure waveforms were computed in three different sites, … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,252 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTactile Distinction of an Artery and a Tumor in a Soft Tissue by Finite Element MethodAli Abouei Mehrizi, Siamak Najarian, Majid Moini, Farhad Tabatabai GhomsheTactile detection of a tumor and an artery in a tissue and distinction of a healthy artery from a stenotic artery, using finite element method, are presented. Four 2D models of tissue have been created: tissue itself, tissue including a tumor (TIT), tissue including a healthy artery (TIHA), and tissue including a stenotic artery (TISA). After solving four models with … …American Journal of Applied Sciences, Vol. 5, Issue 2 · 28 Feb 2008 · 7,596 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNumerical Analysis of Pulsatile Blood Flow in a Stented Human Coronary Artery with a Flow DividerVahab Dehlaghi, Mohammad Tafazoli Shadpoor, Siamak NajarianShear stress is known to play a central role in restenosis formation and is sensitive to stent geometry. Local flow alterations created by a different stents without and with flow divider were studied to compare the hemodynamic effects of Stent design properties on restenosis in stented human coronary artery. Blood pressure and shear stress values were computed in three different … …American Journal of Applied Sciences, Vol. 4, Issue 6 · 30 Jun 2007 · 6,521 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssociation of DNA Polymorphism at the Apolipoprotein B-100 Gene Locus with Plasma Lipid Concentration and Coronary Artery Disease among North IndiansVivek Pratap Singh, V. Ramesh, Sonal Somvanshi et al.The aim of this study was to investigate the association between apolipoprotein B gene polymorphisms and coronary artery disease and lipid levels in north Indians. Two hundred patients of angiographically proven atherosclerotic CAD and two hundred age and sex matched control subjects were included in the study. Serum lipids including cholesterol, triglycerides, HDL, LDL, VLDL and ApoB were analyzed. PCR … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 7,892 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePeriodontal Disease as a Risk Factor for Coronary Artery DiseaseGholamali Najafi-Parizi, Ahmad LoriThere are many risk factors for coronary artery disease (CAD) and periodontal disease (PDD) is a controversial risk factor. The aim of this study was to show the association between CAD and PDD. A case-control study was designed. Sixty one patients that CAD was confirm in them by coronary angiography compared with sixty one patients with normal angiography. PDD was … …American Journal of Applied Sciences, Vol. 2, Issue 11 · 30 Nov 2005 · 6,916 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePaleolithic-Style Diet and Coronary Artery Disease: The Tissue is the Issue?Eri Toda, Takahashi Toru, R. B. Singh et al.Approach: While the Western diet is proatherogenic, Paleolithic-style diet may be protective against Cardiovascular Diseases (CVDs). Results: Western diet is characterized with energy dense, refined, foods with a high glycemic index (e.g., refined starches; biscuits and bread) and unhealthy lipids (e.g., trans fats, saturated fat, omega-6 rich oils) poor in omega-3 fatty acids, phytochemicals and fibre. These diets are known … …Current Research in Medicine, Vol. 3, Issue 2 · 10 Aug 2012 · 7,135 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleUtilization of Specific Index for Measuring the Association between Periodontal Conditions and Coronary Artery DiseaseNavabi Nader, Farzaneh MehdizadehProblem statement: There is increasing evidence that periodontal disease could play a role in the Progression of coronary heart disease although there are conflicting results about this association in the literature and the difference of used periodontal scoring systems among the studies might be a reason. The purpose of this study was to evaluate a specific scoring system Periodontal Index … …Current Research in Dentistry, Vol. 1, Issue 1 · 30 Jun 2010 · 8,019 accessesView PDFCite