Patient-specific simulation of a stentless aortic valve implant: the impact of fibres on leaflet performance.

abstract：:Musculoskeletal research questions regarding the prevention or rehabilitation of the hand can be addressed using inverse dynamics simulations when experiments are not possible. To date, no complete human hand model implemented in a holistic human body model has been fully developed. The aim of this work was to develop...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Engelhardt L,Melzner M,Havelkova L,Fiala P,Christen P,Dendorfer S,Simon U

更新日期：2020-12-10 00:00:00

abstract：:A critical point in models of the human limbs when the aim is to investigate the motor control is the muscle model. More often the mechanical output of a muscle is considered as one musculotendon force that is a design variable in optimization tasks solved predominantly by static optimization. For dynamic conditions, ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Raikova R,Aladjov H

更新日期：2003-06-01 00:00:00

abstract：:Rupture prediction of abdominal aortic aneurysms (AAAs) remains a clinical challenge. Finite element analysis (FEA) may allow for improved identification for intervention timing, but the method needs further substantiation. In this study, experimental photoelastic method and finite element techniques were compared usi...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Callanan A,Morris LG,McGloughlin TM

更新日期：2012-01-01 00:00:00

abstract：:We present a one-dimensional (1D) fluid dynamic model that can predict blood flow and blood pressure during exercise using data collected at rest. To facilitate accurate prediction of blood flow, we developed an impedance boundary condition using morphologically derived structured trees. Our model was validated by com...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Steele BN,Olufsen MS,Taylor CA

更新日期：2007-02-01 00:00:00

abstract：:The Montgomery T-tube is used as a combined tracheal stent and airway after laryngotracheoplasty, to keep the lumen open and prevent mucosal laceration from scarring. It is valuable in the management of upper and mid-tracheal lesions, while invaluable in long and multisegmental stenting lesions. Numerical simulations ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Trabelsi O,Malvè M,Mena Tobar A,Doblaré M

更新日期：2015-01-01 00:00:00

abstract：:The purpose of this study was to propose an innovative approach of setting outlet boundary conditions for the computational fluid dynamics (CFD) simulation of human common carotid arteries (CCAs) bifurcation based on the concept of energy loss minimisation at flow bifurcation. Comparisons between this new approach and...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zhang Y,Furusawa T,Sia SF,Umezu M,Qian Y

更新日期：2013-01-01 00:00:00

abstract：:The article presents advanced computer simulations aimed at the accurate modelling of human tibio-femoral joints (TFJs) in terms of anatomy, physiological loading and constitutive behaviour of the tissues. The main objective of this research is to demonstrate the implications that the implementation of different artic...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Mattei L,Campioni E,Accardi MA,Dini D

更新日期：2014-01-01 00:00:00

abstract：:In this paper, a qualitative comparison between two types of dental implants with respect to their behaviour under immediate loading is presented. This analysis has been carried out using the finite element method. Since micromotions (and not the load) are responsible of the appearance of a fibrous interface avoiding ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Pérez del Palomar A,Arruga A,Cegoñino J,Doblaré M

更新日期：2005-02-01 00:00:00

abstract：:In the present study, the free fall impact test in accordance with the EN1078 standard for certification of bicycle helmets is replicated using numerical simulations. The impact scenario is simulated using an experimentally validated, patient-specific head model equipped with and without a bicycle helmet. Head acceler...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Sandberg M,Tse KM,Tan LB,Lee HP

更新日期：2018-09-01 00:00:00

abstract：:The aim of this study is to evaluate the fracture union or non-union for a specific patient that presented oblique fractures in tibia and fibula, using a mechanistic-based bone healing model. Normally, this kind of fractures can be treated through an intramedullary nail using two possible configurations that depends o...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Alierta JA,Pérez MA,Seral B,García-Aznar JM

更新日期：2016-09-01 00:00:00

abstract：:The rate of bone loss is subject to considerable variation between individuals. With the 'mechanostat' model of Frost, genetic variations in bone mechanoresponsiveness are modelled by different mechanostat 'setpoints'--which may also change with age or disease. In this paper, the following setpoints are used: epsilonm...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Mulvihill BM,Prendergast PJ

更新日期：2008-10-01 00:00:00

abstract：:Polyurethane (PU) foam is a material often used in biomechanical experiments and demands for the definition of crushable foam plasticity (CFP) in numerical simulations of the primary stability and deformation of implants, to describe the crushing behaviour appropriately. Material data of PU foams with five different d...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Schulze C,Vogel D,Sander M,Bader R

更新日期：2019-01-01 00:00:00

abstract：:In order to investigate injury mechanisms, and to provide directions for road safety system improvements, the HUMOS project has lead to the development of a 3D finite element model of the human body in driving position. The model geometry was obtained from a 50th percentile adult male. It includes the description of a...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Behr M,Arnoux PJ,Serre T,Bidal S,Kang HS,Thollon L,Cavallero C,Kayvantash K,Brunet C

更新日期：2003-08-01 00:00:00

abstract：:Woodpeckers can withstand a fierce impact during pecking without any brain injury. Although directly involved in the whole pecking, the role of the jaw apparatus played in the impact-resistant process of woodpeckers is still not fully clear. We employed finite element analysis, impact tests in vivo, and post-traumatic...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Xu P,Ni Y,Lu S,Liu S,Zhou X,Fan Y

更新日期：2021-01-13 00:00:00

abstract：:A two-dimensional time-dependent computational fluid dynamics model of the Circle of Willis has been developed. To simulate, not only the peripheral resistance of the cerebrovascular tree but also its auto-regulation function, a new "active" boundary condition has been defined and developed using control theory to pro...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ferrandez A,David T,Brown MD

更新日期：2002-02-01 00:00:00

abstract：:To extend the use of computational techniques like finite element analysis to clinical settings, it would be beneficial to have the ability to generate a unique model for every subject quickly and efficiently. This work is an extension of two previously developed mapped meshing tools that utilised force and displaceme...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Kallemeyn NA,Natarajan A,Magnotta VA,Grosland NM

更新日期：2013-01-01 00:00:00

abstract：:Preoperative planning, or intraoperative navigation of hip surgery, including joint-preserving procedures such as osteotomy or joint-replacing procedures such as total arthroplasty, needs to be performed with a high degree of accuracy to ensure a successful outcome. The ability to precisely localise the hip joint rota...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Kang MJ,Sadri H,Stern R,Magnenat-Thalmann N,Hoffmeyer P,Ji HS

更新日期：2011-01-01 00:00:00

abstract：:Blunt and rotational head impacts due to vehicular collisions, falls and contact sports cause relative motion between the brain and skull. This increases the normal and shear stresses in the (skull/brain) interface region consisting of cerebrospinal fluid (CSF) and subarachnoid space (SAS) trabeculae. The relative mot...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zoghi-Moghadam M,Sadegh AM

更新日期：2009-02-01 00:00:00

abstract：:This paper analyses the mechanical behaviour of a new reinforced anatomical post-systems (RAPS) for endodontic restoration. The composite restorative material (CRM) completely fills the root canal (as do the commonly used cast metal posts) and multiple prefabricated composite posts (PCPs) are employed as reinforcement...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Maceri F,Martignoni M,Vairo G

更新日期：2009-02-01 00:00:00

abstract：:In almost all finite element (FE) studies in dentistry, virtual forces are applied directly to dentures. The purpose of this study was to develop a FE model with non-linear contact simulation using an antagonist as force transmitter and to compare this with a similar model that uses direct force transmission. Furtherm...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Rand A,Stiesch M,Eisenburger M,Greuling A

更新日期：2017-08-01 00:00:00

abstract：:Haemodynamics is believed to play an important role in the initiation, growth and rupture of intracranial aneurysms. In this context, computational haemodynamics has been extensively used in an effort to establish correlations between flow variables and clinical outcome. It is common practice in the application of Dir...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Marzo A,Singh P,Reymond P,Stergiopulos N,Patel U,Hose R

更新日期：2009-08-01 00:00:00

abstract：:The aim of this paper is to use a poroviscohyperelastic (PVHE) model, which is developed based on the porohyperelastic (PHE) model to explore the mechanical deformation properties of single chondrocytes. Both creep and relaxation responses are investigated by using finite element analysis models of micropipette aspira...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Nguyen TD,Oloyede A,Gu Y

更新日期：2016-01-01 00:00:00

abstract：:Cell-cell and cell-matrix adhesions are fundamental to numerous physiological processes, including angiogenesis, tumourigenesis, metastatic spreading and wound healing. We use cellular potts model to computationally predict the organisation of cells within a 3D matrix. The energy potentials regulating cell-cell (JCC) ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Singh J,Hussain F,Decuzzi P

更新日期：2015-01-01 00:00:00

abstract：:A clear and rigorous definition of muscle moment-arms in the context of musculoskeletal systems modelling is presented, using classical mechanics and screw theory. The definition provides an alternative to the tendon excursion method, which can lead to incorrect moment-arms if used inappropriately due to its dependenc...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ingram D,Engelhardt C,Farron A,Terrier A,Müllhaupt P

更新日期：2015-01-01 00:00:00

abstract：:The human jaw's structure-function relationships are complex. A recent example of this complexity is the lateral pterygoid muscle which we now consider as a single unit made up of functional regions with activity in each dependent on the biomechanical demands of the task. We have also characterised the effects on the ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Peck CC,Wirianski A,Murray GM

更新日期：2010-08-01 00:00:00

abstract：:When designing any rehabilitation, sportswear or exoskeleton device the mechanical behaviour of the body segment must be known, specifically the skin, because an excessive tissue strain may lead to ulceration and bedsores. To date, it is not known if the kinematic variability between subjects have an effect on the ski...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Barrios-Muriel J,Romero Sánchez F,Alonso Sánchez FJ,Rodríguez Salgado D

更新日期：2019-11-01 00:00:00

abstract：:Use of finite element (FE) foot model as a clinical diagnostics tool is likely to improve the specificity of foot injury predictions in the diabetic population. Here we proposed a novel workflow for rapid construction of foot FE model incorporating realistic geometry of metatarsals encapsulated into lumped forefoot's ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Chen WM,Lee SJ,Lee PVS

更新日期：2017-10-01 00:00:00

abstract：:The flow effect on the concentration of platelet active substances in the vicinity of a mural microthrombus is investigated numerically. A three-dimensional model is employed in which the mural microthrombus is modelled as a semisphere attached to a plane surface. The description of the blood flow uses the three-dimen...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Karner G,Perktold K

更新日期：1998-01-01 00:00:00

abstract：:Oscillatory shear stress (OSS), caused by time-varying flow environments, may play a critical role in the production of engineered tissue by bone marrow-derived stem cells. This is particularly relevant in heart valve tissue engineering (HVTE), owing to the intense haemodynamic environments that surround native valves...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Salinas M,Schmidt DE,Libera M,Lange RR,Ramaswamy S

更新日期：2014-05-01 00:00:00

abstract：:The decompensated univentricular circulation is identified as one of the most challenging conditions and the application of the mechanical circulatory support (MCS) devices is proposed as therapeutic option for Fontan failure. Modelling methodologies are reported to identify the optimized types, extent and duration of...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Rubtsova E,Markov A,Selishchev S,Karimov JH,Telyshev D

更新日期：2021-01-11 00:00:00