The impact of calcification patterns in transcatheter aortic valve performance: a fluid-structure interaction analysis.

abstract：:Convective transports in the vertebral end plate (VEP) play a significant role in the homeostasis of the spine. A few studies hypothesised that the hydraulic resistance or effective permeability of the VEP could be dependant upon fluid-flow direction. Results were influenced by species, region of interest within the e...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Swider P,Accadbled F,Laffosse JM,Sales de Gauzy J

更新日期：2012-01-01 00:00:00

abstract：:A three-dimensional finite element model is developed for the simulation of the sound transmission through the human auditory periphery consisting of the external ear canal, middle ear and cochlea. The cochlea is modelled as a straight duct divided into two fluid-filled scalae by the basilar membrane (BM) having an or...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Wang X,Wang L,Zhou J,Hu Y

更新日期：2014-08-01 00:00:00

abstract：:Burns in the airway from inhaling hot gases lead to one of the most common causes of death in the United States. In order to navigate tissues with large burn areas, the velocity, temperature, and heat flux distributions throughout the human airway system are computed for the inhalation of hot air using the finite-elem...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Park S

更新日期：2016-01-01 00:00:00

abstract：:This study evaluated the polymerization shrinkage stress of three tooth preparation designs for indirect ceramic overlay by finite element analysis: isthmus preparation (IST); without isthmus preparation (wIST); and non-retentive preparation (nRET). The models were created based in prepared dental typodonts and were d...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： de Andrade GS,Pinto ABA,Tribst JPM,Chun EP,Borges ALS,de Siqueira Ferreira Anzaloni Saavedra G

更新日期：2021-01-07 00:00:00

abstract：:The aim of this study was to measure the cardiac output and stroke volume for a healthy subject by coupling an echocardiogram Doppler (echo-Doppler) method with a fluid-structure interaction (FSI) simulation at rest and during exercise. Blood flow through aortic valve was measured by Doppler flow echocardiography. Aor...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Bahraseman HG,Hassani K,Navidbakhsh M,Espino DM,Sani ZA,Fatouraee N

更新日期：2014-01-01 00:00:00

abstract：:Work-related musculoskeletal disorders (WMSDs) have become increasingly common among dentists and initiate a series of events that could result in a career ending. This study aims to construct a system for predicting and preventing WMSD among dentists. We used Bayesian network (BN) that describes the mutual relationsh...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Thanathornwong B,Suebnukarn S,Songpaisan Y,Ouivirach K

更新日期：2014-01-01 00:00:00

abstract：:Mutual information (MI)-based registration, which uses MI as the similarity measure, is a representative method in medical image registration. It has an excellent robustness and accuracy, but with the disadvantages of a large amount of calculation and a long processing time. In this paper, by computing the medical ima...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Pan M,Tang J,Xiong Q

更新日期：2012-01-01 00:00:00

abstract：:Since the discovery of X-rays, medical imaging has played a major role in the guidance of surgical procedures. While medical imaging began with simple X-ray plates to indicate the presence of foreign objects within the human body, the advent of the computer has been a major factor in the recent development of this fie...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Peters TM

更新日期：2000-01-01 00:00:00

abstract：:The 2D shape of the lumbar spine in the sagittal plane can be determined from lordosis angles measured between the corresponding end-plates of the vertebral bodies or by using an active shape model (ASM) of the vertebral body outline. The ASM was previously shown to be a more efficient and reliable method, but its acc...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Ali AH,Cowan AB,Gregory JS,Aspden RM,Meakin JR

更新日期：2012-01-01 00:00:00

abstract：:Rupture of intracranial saccular aneurysms continues to result in significant morbidity and mortality. Although it has long been thought that biomechanical factors play key roles in the genesis, growth, and rupture of these lesions, few analysis have employed realistic descriptions of the geometries and material prope...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Shah AD,Harris JL,Kyriacou SK,Humphrey JD

更新日期：1998-01-01 00:00:00

abstract：:Electrocardiogram (ECG) signals are difficult to interpret, and clinicians must undertake a long training process to learn to diagnose diabetes from subtle abnormalities in these signals. To facilitate these diagnoses, we have developed a technique based on the heart rate variability signal obtained from ECG signals. ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Acharya UR,Faust O,Sree SV,Ghista DN,Dua S,Joseph P,Ahamed VI,Janarthanan N,Tamura T

更新日期：2013-01-01 00:00:00

abstract：:Retinal blood vessel detection and analysis play vital roles in early diagnosis and prevention of several diseases, such as hypertension, diabetes, arteriosclerosis, cardiovascular disease and stroke. This paper presents an automated algorithm for retinal blood vessel segmentation. The proposed algorithm takes advanta...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Saleh MD,Eswaran C

更新日期：2012-01-01 00:00:00

abstract：:The magnitude and distribution of bone and muscle mass within limbs affect limb inertial properties, maximum movement speed and the energy required to maintain submaximal movements. Musculoskeletal modeling and movement simulations were used to determine how changes in bone and muscle cross-sectional area (and thus ma...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Dellanini L,Hawkins D,Martin B,Stover S

更新日期：2004-06-01 00:00:00

abstract：:Manual segmentation of articular cartilage from knee joint 3D magnetic resonance images (MRI) is a time consuming and laborious task. Thus, automatic methods are needed for faster and reproducible segmentations. In the present study, we developed a semi-automatic segmentation method based on radial intensity profiles ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Liukkonen MK,Mononen ME,Tanska P,Saarakkala S,Nieminen MT,Korhonen RK

更新日期：2017-10-01 00:00:00

abstract：:Monitoring of skin blood flow oscillations related with mechanical activity of vessels is a very useful modality during diagnosis of peripheral hemodynamic disorders. In this study, we developed a new model and technique for real-time conversion of skin temperature into skin blood flow oscillations, and vice versa. Th...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Sagaidachnyi A,Fomin A,Usanov D,Skripal A

更新日期：2019-09-01 00:00:00

abstract：:The current study aimed to evaluate physical training effects. For this purpose, a classifier was implemented by taking into account biomechanical features selected from force-plate measurements and a neurofuzzy algorithm for data management and relevant decision-making. Measurements included two sets of sit-to-stand ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Vannozzi G,Pecoraro F,Caserotti P,Cappozzo A

更新日期：2008-02-01 00:00:00

abstract：:Modeling tumor growth in biological systems is a challenging problem with important consequences for diagnosis and treatment of various forms of cancer. This growth process requires large simulation complexity due to evolving biological and chemical processes in living tissue and interactions of cellular and vascular ...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Puzyrev V,Łoś M,Gurgul G,Calo V,Dzwinel W,Paszyński M

更新日期：2019-12-01 00:00:00

abstract：:This paper is concerned with the qualitative and quantitative description of the constitutive behaviour of dental composites during the curing process. Both generalized Kelvin- and Maxwell-models are studied and the parameters characterizing these models are determined by the means of an identification procedure based...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Hübsch PF,Middleton J,Feilzer AJ

更新日期：1999-01-01 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：:Both inter-lamellar and intra-lamellar failures of the annulus have been described as potential modes of disc herniation. Attempts to characterize initial lamellar failure of the annulus have involved tensile testing of small tissue samples. The purpose of this study was to evaluate a method of measuring local surface...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Karakolis T,Callaghan JP

更新日期：2015-01-01 00:00:00

abstract：:In this article, the problem of laminar, isothermal, incompressible and viscous flow in a rectangular domain bounded by two moving porous walls, which enable the fluid to enter or exit during successive expansions or contractions, is investigated. The governing non-linear equations and their associated boundary condit...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Dinarvand S

更新日期：2011-10-01 00:00:00

abstract：:Abnormal haemodynamic parameters are associated with atheroma plaque progression and instability in coronary arteries. Flow recirculation, shear stress and pressure gradient are understood to be important pathogenic mediators in coronary disease. The effect of freedom of coronary artery movement on these parameters is...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Javadzadegan A,Yong AS,Chang M,Ng MK,Behnia M,Kritharides L

更新日期：2017-02-01 00:00:00

abstract：:A recently presented solution method for the bidomain model (Johnston et al. 2006), which involves the application of direct current for studying electrical potential in a slab of cardiac tissue, is extended here to allow the use of an applied alternating current. The advantage of using AC current, in a four-electrode...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Johnston BM,Johnston PR,Kilpatrick D

更新日期：2008-06-01 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：:Sparse geometric information from limited field-of-view medical images is often used to reconstruct the femur in biomechanical models of the hip and knee. However, the full femur geometry is needed to establish boundary conditions such as muscle attachment sites and joint axes which define the orientation of joint loa...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Zhang J,Besier TF

更新日期：2017-04-01 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：:The display of three-dimensional angiograms can benefit from the knowledge of quantitative shape features such as tangent and curvature of the centerline of vessels. These can be obtained from a curve-like skeleton representation. If connectivity and topology are preserved, and if geometrical constraints such as smoot...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Yi D,Hayward V

更新日期：2002-10-01 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：:The present paper describes a geometrically and physically nonlinear continuum model to study the mechanical behaviour of passive and active skeletal muscle. The contraction is described with a Huxley type model. A Distributed Moments approach is used to convert the Huxley partial differential equation in a set of ord...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Gielen AW,Oomens CW,Bovendeerd PH,Arts T,Janssen JD

更新日期：2000-01-01 00:00:00

abstract：:The clinical importance of measuring local pulse wave velocity (PWV), has encouraged researchers to develop several local methods to estimate it. In this work, we proposed a new method, the sum-of-squares method [Formula: see text], that allows the estimations of PWV by using simultaneous measurements of blood pressur...

journal_title：Computer methods in biomechanics and biomedical engineering

authors： Abdessalem KB,Flaud P,Zobaidi S

更新日期：2018-01-01 00:00:00