Search Results - "heart valve"

Simulation Of Blood Flow In Bi-Leaflet Mechanical Heart Valve by Mokhtar, Noorhafizah

“…. _______________________________________________________________________________________________________ Our heart can be affected by several diseases during its lifetime that consequently result to heart valve malfunctioned. For this reason, bi-leaflet mechanical heart valve (BMHV) is used as a replacement that consist of two semi-circular leaflets and a valve housing. …”
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Diagnosis of heart valve disorders through trapezoidal features and hybrid classifier. by Safara, Fatemeh, C. Doraisamy, Shyamala, Azman, Azreen, Jantan, Azrul Hazri, Sri Ranga

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Numerical simulation of bileaflet heart valve prostheses in aortic position / Kamalasrinny Radhakrisnnan by Kamalasrinny , Radhakrisnnan

“…Modeling and simulation of heart valves had been a demanding biomechanical problem due to the variation in anatomy of heart valves, 3D anisotropic material behavior and the pulsatile physiological behavior. …”
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The burden and implications of preoperative atrial fibrillation in Australian heart valve surgery patients by Russell, E., Walsh, W., Tran, L., Tam, R., Reid, Christopher, Brown, A., Bennetts, J., Baker, R., Maguire, G.

“…Background Atrial fibrillation (AF) is the most common preoperative arrhythmia in heart valve surgery patients and its prevalence is rising. …”
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Review of numerical methods for simulation of mechanical heart valves and the potential for blood clotting by Zakaria, Mohamad Shukri, Ismail, Farzad, Tamagawa, Masaaki, Abdul Aziz, Ahmad Fazli, Wiriadidjaja, Surjatin, Basri, Adi Azrif, Ahmad, Kamarul Arifin

“…Even though the mechanical heart valve (MHV) has been used routinely in clinical practice for over 60 years, the occurrence of serious complications such as blood clotting remains to be elucidated. …”
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Numerical simulation of mechanical heart valve with coherent vortex shedding in OpenFOAM by Zakaria, Mohamad Shukri, Ismail, Farzad, Wiriadidjaja, Surjatin, Aziz, M. F. A., Tamagawa, Masaaki, Basri, Adi Azriff, Ahmad, Kamarul Arifin

“…Results shows, at physiological Re=6000, the LES model produces highly complex turbulent structures contained valuable information that could predict the heart valve disease such as a blood clot.…”
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The numerical analysis of non-newtonian blood flow in a mechanical heart valve by Chen, Aolin, Basri, Adi Azriff, Ismail, Norzian, Ahmad, Kamarul Arifin

“…Background: The non-physiological structure of mechanical heart valves (MHVs) affects the blood flow field, especially the complex microstructure at the hinge. …”
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Simulation of mechanical heart valve dysfunction and the non-newtonian blood model approach by Chen, Aolin, Basri, Adi Azriff, Ismail, Norzian, Tamagawa, Masaaki, Zhu, Di, Ahmad, Kamarul Arifin

“…The mechanical heart valve (MHV) is commonly used for the treatment of cardiovascular diseases. …”
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Analysis of blood flow in 3d heart valve model under steady state condition by Mohammad Iskandar, Othman

“…Furthermore, these models can be used to investigate heart valve failure and subsequent surgical repair treatment.…”
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Numerical analysis on simplified 2d model of heart valve leaflets during cardiac cycle by Lee, Xin Leong

“…Ellipse shape of leaflets could be chosen as the most suitable shape among these five shapes in further study of heart valve simulation.…”
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Simulation Of Blood Flow Through Mechanical Heart Valve Using Ansys Fluid Structure Interaction by Chai, Jien Wei

“…A successful mechanical prosthetic heart valve design is the bileaflet valve, which has been implanted for the first time more than 20 years ago. …”
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Pattern recognition of heart valve in echocardiogram using convolutional neural network / Muhammad Hanif Ahmad Nizar by Muhammad Hanif , Ahmad Nizar

“…However, using this machine requires a degree of skill in order to locate the heart valves. We propose the use of a trained neural network to locate the position of the aortic valve from an echocardiogram image as an assistive technology during echocardiogram examination. …”
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Simulation Of Blood Flow Through Transcatheter Heart Valve (Thv) Using Ansys Fluid Structure Interaction by Juma’at, Mohamad Haziq

“…However, does the effectiveness of the transcatheter heart valve (THV) is on par with the mechanical heart valve and other prosthetic heart valves. …”
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Warfarin doses in the initiation phase among patients with heart valve replacement and atrial fibrillation in Hospital Pulau Pinang by Jia, Teoh Chee

“…Due to higher incidence of bleeding in initial phase of warfarin therapy and reported fluctuation of dose in initial phase of warfarin therapy after heart valve surgery, this study was conducted to evaluate the changes in warfarin doses among patients after heart valve surgery and atrial fibrillation. …”
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Warfarin doses in the initiation phase among patients with heart valve replacement and atrial fibrillation in Hospital Pulau Pinang by Jia, Teoh Chee

“…Due to higher incidence of bleeding in initial phase of warfarin therapy and reported fluctuation of dose in initial phase of warfarin therapy after heart valve surgery, this study was conducted to evaluate the changes in warfarin doses among patients after heart valve surgery and atrial fibrillation. …”
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Girl with congenital heart valve regurgitation by Sin Chiew, Daily

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Development of non-boundary-fitted Cartesian grid method for numerical simulation of mechanical heart valve and the potential for blood clotting by Zakaria, Mohamad Shukri

Subjects: “…Heart valve prosthesis…”
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Hemodynamic effects of subaortic stenosis on blood flow characteristics of a mechanical heart valve based on openFOAM simulation by Chen, Aolin, Basri, Adi Azriff, Ismail, Norzian, Ahmad, Kamarul Arifin

“…However, the effects of subaortic stenosis on mechanical heart valves (MHV) are unknown. This study aimed to investigate flow characteristics in the presence of subaortic stenosis and computationally quantify the effects on the hemodynamics of MHV. …”
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Development of heart simulator (Heart-S) on the left ventricle for measuring the blood circulation during cardiac cycle by Loh, Quo Liang, Kok, Yin Hui, Nur Hazreen, Mohd Hasni, Mohd Azrul Hisham, Mohd Adib

“…Throughout the experimental modeling of heart valve structure by using rhythmic fluid flow in a closed chamber, the relationship between heart valve elasticity and heart valve angle position to the valve opening width were investigated. …”
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Assessment of mitral valve geometry for personalised annuloplasty ring development by Srisook, Chirattikan

“…Heart valve disease can occur when one valve or a combination of the heart valves is not working properly. …”
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