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Influence of Parent Artery Segmentation and Boundary Conditions on Hemodynamic Characteristics of Intracranial Aneurysms

Hua Y, Oh JH, Kim YB

PURPOSE: The purpose of this study is to explore the influence of segmentation of the upstream and downstream parent artery and hemodynamic boundary conditions (BCs) on the evaluated hemodynamic factors...
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Hemodynamic Significance of Internal Carotid or Middle Cerebral Artery Stenosis Detected on Magnetic Resonance Angiography

Seo HJ, Pagsisihan JR, Paeng JC, Choi SH, Cheon GJ, Chung JK, Lee DS, Kang KW

PURPOSE: We evaluated hemodynamic significance of stenosis on magnetic resonance angiography (MRA) using acetazolamide perfusion single photon emission computed tomography (SPECT). MATERIALS AND METHODS: Of 171 patients, stenosis in internal carotid...
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An Integrative Model of the Cardiovascular System Coupling Heart Cellular Mechanics with Arterial Network Hemodynamics

Kim YT, Lee JS, Youn CH, Choi JS, Shim EB

The current study proposes a model of the cardiovascular system that couples heart cell mechanics with arterial hemodynamics to examine the physiological role of arterial blood pressure (BP) in left...
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Hemodynamic Instability during Carotid Angioplasty and Stenting-Relationship of Calcified Plaque and Its Characteristics

Jeon JS, Sheen SH, Hwang G

PURPOSE: During carotid angioplasty and stenting (CAS), hemodynamic instability (HDI) can occur, possibly causing post-procedural ischemic complications. The goal of this study was to investigate the risk factors of HDI...
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Chronic Kidney Disease, Hemodynamic Instability, and Endoscopic High-Risk Appearance Are Associated with 30-Day Rebleeding in Patients with Non-Variceal Upper Gastrointestinal Bleeding

Lee YJ, Kim ES, Hah YJ, Park KS, Cho KB, Jang BK, Chung WJ, Hwang JS

The results of studies that evaluated predictive factors for rebleeding in non-variceal upper gastrointestinal bleeding are inconsistent. The aim of this study was to investigate predictive factors for 30-day rebleeding...
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Physiologic approach for coronary intervention

Fearon WF

When invasively assessing coronary artery disease, the primary goal should be to determine whether the disease is causing a patient's symptoms and whether it is likely to cause future cardiac...
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Hemodynamic Analysis of Coronary Circulation in Angulated Coronary Stenosis Following Stenting

Lee BK, Lee JY, Hong BK, Park BE, Kim DS, Kim DY, Cho YH, Yoon SJ, Yoon YW, Kwon HM, Roh HW, Kim I, Park HW, Han SM, Cho MT, Suh SH, Kim HS

The present study in angulated coronary stenosis used human in vivo hemodynamic parameters and computed simulation, both qualitatively and qualitatively, to evaluate the influence of flow velocity and wall shear...
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Hemodynamic Effects on Atherosclerosis-Prone Coronary Artery: Wall Shear Stress / Rate Distribution and Impedance Phase Angle in Coronary and Aortic Circulation

Lee BK, Kwon HM, Hong BK, Park BE, Suh SH, Cho MT, Lee CS, Kim MC, Kim CJ, Yoo SS, Kim HS

The objective of the present study was to evaluate the hemodynamic characteristics of an atherosclerosis-prone coronary artery compared to the aorta. We describe three- dimensional spatial patterns of wall shear...
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Effects of hypotensive anesthesia with sodium nitroprusside or isoflurane on hemodynamic and metabolic changes

Nam YT, Kim JS, Park KW

The hemodynamic and metabolic changes during induced hypotension with isoflurane (isoflurane group) or sodium nitroprusside (SNP group) were observed in twelve mongrel dogs. These hypotensive effects were evaluated at 30...
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