1-20 of 25
Keyword: hemodynamics
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
×Close Modal
Sort by
Journal Articles
Article Type: Research-Article
J Biomech Eng. March 2019, 141(3): 031005.
Paper No: BIO-18-1292
Published Online: January 18, 2019
... dissipation and flow separation were found to be significant contributions to accurate reduce order modeling of transstenotic coronary hemodynamics. 1 Corresponding author. 2 Technically, FFR = ( P dist − P v / P ao − P v ), although central venous pressure ( P v  < 8 mmHg) is often assumed...
Journal Articles
Article Type: Research-Article
J Biomech Eng. February 2019, 141(2): 021012.
Paper No: BIO-18-1238
Published Online: December 12, 2018
... computational fluid dynamics (CFD) hemodynamics blood trauma hemolysis shear stress mesh sensitivity wall functions ventricular assist device (VAD) Despite extensive research and promising new technologies, the clinical benefit of blood recirculating devices is often accompanied by a high...
Journal Articles
Article Type: Research-Article
J Biomech Eng. June 2014, 136(6): 061005.
Paper No: BIO-13-1292
Published Online: April 25, 2014
... 2014 Three-dimensional numerical simulations are employed to investigate the hemodynamic effects of abnormal E/A ratios on left ventricular filling. The simulations are performed in a simplified geometric model of the left ventricle (LV) in conjunction with a specified endocardial motion. The...
Journal Articles
Article Type: Research-Article
J Biomech Eng. April 2014, 136(4): 041001.
Paper No: BIO-13-1087
Published Online: March 24, 2014
... spectrum of secondary valvulopathies and aortopathies potentially triggered by hemodynamic abnormalities. While studies have demonstrated an intrinsic degree of stenosis and the existence of a skewed orifice jet in the BAV, the impact of those abnormalities on BAV hemodynamic performance and energy loss...
Journal Articles
Article Type: Research-Article
J Biomech Eng. April 2014, 136(4): 041007.
Paper No: BIO-13-1324
Published Online: March 24, 2014
... procedure for the stent in the stenotic vertebral artery was simulated for solid mechanics analysis. Next, the deformed models were extracted to construct the blood flow domain, and numerical simulations of the hemodynamics in these models were performed using the finite element method. The numerical...
Journal Articles
Article Type: Research-Article
J Biomech Eng. January 2014, 136(1): 011009.
Paper No: BIO-13-1179
Published Online: December 4, 2013
... received October 19, 2013; accepted manuscript posted October 31, 2013; published online December 4, 2013. Assoc. Editor: Dalin Tang. 09 04 2013 19 10 2013 31 10 2013 Techniques that model microvascular hemodynamics have been developed for decades. While the physiological...
Journal Articles
Article Type: Research-Article
J Biomech Eng. February 2013, 135(2): 021011.
Paper No: BIO-12-1552
Published Online: February 7, 2013
... computational models of abdominal aortic aneurysms address either the hemodynamics within the lesion or the mechanics of the wall. More recently, however, some models have appropriately begun to account for the evolving mechanics of the wall in response to the changing hemodynamic loads. Collectively, this...
Journal Articles
Article Type: Research-Article
J Biomech Eng. February 2013, 135(2): 021023.
Paper No: BIO-12-1463
Published Online: February 7, 2013
..., 2013; accepted manuscript posted January 18, 2013; published online February 7, 2013. Editor: Victor H. Barocas. 03 10 2012 06 01 2013 18 01 2013 Studies investigating the relation between the focal nature of atherosclerosis and hemodynamic factors are employing increasingly...
Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2012, 134(8): 081002.
Published Online: August 6, 2012
... damage to enable the design of improved VADs. In this study, computational fluid dynamics (CFD) was used to calculate the hemodynamics in three clinical VADs and two investigational VADs and the shear stress, residence time, and hemolysis were investigated. A new scalar transport model for hemolysis was...
Journal Articles
Article Type: Research Papers
J Biomech Eng. November 2010, 132(11): 111009.
Published Online: October 27, 2010
...Trung B. Le; Iman Borazjani; Fotis Sotiropoulos High-resolution numerical simulations are carried out to systematically investigate the effect of the incoming flow waveform on the hemodynamics and wall shear stress patterns of an anatomic sidewall intracranial aneurysm model. Various wave forms are...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. October 2010, 132(10): 104503.
Published Online: September 27, 2010
...Megan Cummins; Jenn Stroud Rossmann The hemodynamics and fluid mechanical forces in blood vessels have long been implicated in the deposition and growth of atherosclerotic plaque. Detailed information about the hemodynamics in vessels affected by significant plaque deposits can also provide insight...
Journal Articles
Article Type: Research Papers
J Biomech Eng. September 2010, 132(9): 091009.
Published Online: August 26, 2010
...Zijing Zeng; David F. Kallmes; Michael J. Durka; Yonghong Ding; Debra Lewis; Ramanathan Kadirvel; Anne M. Robertson Computational fluid dynamics (CFD) studies provide a valuable tool for evaluating the role of hemodynamics in vascular diseases such as cerebral aneurysms and atherosclerosis. However...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2010, 132(7): 071006.
Published Online: May 26, 2010
... hemodynamics of older adult carotid bifurcations has not been elucidated. Image-based computational fluid dynamics models of N = 9 normal, older adult carotid bifurcations were reconstructed from magnetic resonance angiography. Subject-specific hemodynamics were computed by imposing each individual’s inlet and...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2010, 132(4): 041002.
Published Online: March 8, 2010
...Cheng-Maw Ho; Reui-Kuo Lin; Shun-Feng Tsai; Rey-Hen Hu; Po-Chin Liang; Tony Wen-Hann Sheu; Po-Huang Lee Remnant livers will be regenerated in live donors after a large volume resection for transplantation. How the structures and hemodynamics of portal vein will evolve with liver regeneration...
Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2009, 131(8): 081003.
Published Online: June 19, 2009
...Lucy M. O'Keeffe; Gordon Muir; Anna V. Piterina; Tim McGloughlin Atherosclerosis is consistently found in bifurcations and curved segments of the circulatory system, indicating disturbed hemodynamics may participate in disease development. In vivo and in vitro studies have shown that endothelial...
Journal Articles
Article Type: Research Papers
J Biomech Eng. May 2009, 131(5): 051010.
Published Online: April 14, 2009
...Liang Shi; Zhaoming He Edge-to-edge repair (ETER) is a mitral valve repair technique that restores valvular competence by suturing together the free edges of two leaflets. This repair technique alters mitral valve inflow and thus left ventricle hemodynamics during diastole. Our objective was to...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. March 2009, 131(3): 034506.
Published Online: January 7, 2009
... hemodynamics flow diverter PIV DSA Stroke is the third leading cause of death in the United States. About 5% of the strokes each year are from subarachnoid hemorrhage, which in most cases results from rupture of a brain aneurysm ( 1 ). There are a myriad of factors involved in the rupture potential...
Journal Articles
Article Type: Research Papers
J Biomech Eng. January 2009, 131(1): 011008.
Published Online: November 21, 2008
... grid generation hemodynamics Abdominal aortic aneurysms (AAAs) form secondary to atherosclerosis due to atrophy or necrosis of the arterial media. Several biomechanical parameters can be taken into account to formulate case specific indicators of the risk of rupture ( 1 ). Computational fluid...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021010.
Published Online: March 28, 2008
... oscillations haemodynamics mass transfer prosthetics hemodynamics boundary layer mass transfer drug-eluting stents thrombus formation drug evaluation models local drug delivery The transport of bioactive agents through the blood is essential for cardiovascular regulatory processes and...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. December 2006, 128(6): 844–851.
Published Online: June 15, 2006
..., including inconsistent secondary flow patterns. The CFD results based on the actual phantom geometry, however, matched well with the PIV measurements. CFD of models S2 and S3 produced qualitatively similar flow fields to that of the phantom but quantitatively significant changes in key hemodynamic...