The effect of head rotation on the geometry and hemodynamics of healthy vertebral arteries.

abstract：:Dynamic occlusal loading during mastication is clinically relevant in the design and functional assessment of dental restorations and removable dentures, and in evaluating temporomandibular joint dysfunction. The aim of this study was to develop a modelling framework to evaluate subject-specific dynamic occlusal loadi...

journal_title：Annals of biomedical engineering

authors： Woodford SC,Robinson DL,Edelmann C,Mehl A,Röhrle O,Vee Sin Lee P,Ackland DC

更新日期：2021-01-06 00:00:00

abstract：:Blood flow simulations are making their way into the clinic, and much attention is given to estimation of fractional flow reserve in coronary arteries. Intracardiac blood flow simulations also show promising results, and here the flow field is expected to depend on the pulmonary venous (PV) flow rates. In the absence ...

journal_title：Annals of biomedical engineering

authors： Lantz J,Gupta V,Henriksson L,Karlsson M,Persson A,Carlhäll CJ,Ebbers T

更新日期：2019-02-01 00:00:00

abstract：:Cumulative exposure to head impacts during contact sports can elicit potentially deleterious brain white matter alterations in young athletes. Head impact exposure is commonly quantified using wearable sensors; however, these sensors tend to overestimate the number of true head impacts that occur and may obfuscate pot...

journal_title：Annals of biomedical engineering

authors： DiCesare CA,Green B,Yuan W,Diekfuss JA,Barber Foss KD,Dudley J,Qin Y,Wang P,Myer GD

更新日期：2020-12-01 00:00:00

abstract：:Understanding the complex spatiotemporal dynamics of action potential propagation in the heart during arrhythmia is exceedingly difficult. This study applies nonlinear dynamics tools to simplify this task. Using the results of a simulation of an electrical induction of reentry in a sheet of myocardium represented as a...

journal_title：Annals of biomedical engineering

authors： Larson C,Dragnev L,Trayanova N

更新日期：2003-07-01 00:00:00

abstract：:Finite element analysis is a powerful tool for investigating the biomechanics of atherosclerosis and has thereby provided an improved understanding of acute myocardial infarction. Structural analysis of arterial walls is traditionally performed using geometry contours derived from histology. In this paper we demonstra...

journal_title：Annals of biomedical engineering

authors： Chau AH,Chan RC,Shishkov M,MacNeill B,Iftimia N,Tearney GJ,Kamm RD,Bouma BE,Kaazempur-Mofrad MR

更新日期：2004-11-01 00:00:00

abstract：:Membrane introduction mass spectrometry has been applied to inert gas measurements in blood and tissue, but gases with low blood solubility are associated with reduced sensitivity. Countercurrent extraction of inert gases from a blood sample into a water carrier phase has the potential to extract most of the gas sampl...

journal_title：Annals of biomedical engineering

authors： Baumgardner JE,Neufeld GR

更新日期：1997-09-01 00:00:00

abstract：:While considerable efforts have been expended to develop snore-driven markers for detecting obstructive sleep apnea (OSA), there is little emphasis on the relationship between the human upper airway (UA) dimensions and the attributes of snores. This paper aims to investigate the acoustical and perceptual impacts of ch...

journal_title：Annals of biomedical engineering

authors： Ng AK,Koh TS,Baey E,Puvanendran K

更新日期：2009-09-01 00:00:00

abstract：:Of the many models of peripheral nerve in the literature, essentially all have relied on experimentally derived values for the anisotropic resistivity of the nerve bundle interstitial space. This paper is a comprehensive mathematical analysis of the most referenced experiment for the longitudinal and radial resistivit...

journal_title：Annals of biomedical engineering

authors： Altman KW,Plonsey R

更新日期：1989-01-01 00:00:00

abstract：:Early stage changes in hypertensive arteries have a significant effect on the long-term adaptation of the arteries. Compared to the long-term adaptation, little is known about the early dimensional and functional changes in hypertensive arteries in the first few days of hypertension. To study the early stage changes i...

journal_title：Annals of biomedical engineering

authors： Han HC,Ku DN

更新日期：2001-06-01 00:00:00

abstract：:Abdominal aortic aneurysms occur in as much as 2-3% of the population, and their rupture produces a mortality rate of 78-94% (1), causing 15,000 deaths per year in the U.S. alone. As an investigation into the mechanical factors that lead to aneurysm rupture, flow field measurements are presented for steady flow throug...

journal_title：Annals of biomedical engineering

authors： Asbury CL,Ruberti JW,Bluth EI,Peattie RA

更新日期：1995-01-01 00:00:00

abstract：:Knowledge of strain-rate sensitivity of soft tissue viscoelastic and nonlinear elastic properties is important for accurate predictions of biomechanical behavior and for quantitative assessment of the effects of disease or surgical/pharmaceutical intervention. Soft tissues are known to exhibit mild rate sensitivity, b...

journal_title：Annals of biomedical engineering

authors： Doehring TC,Carew EO,Vesely I

更新日期：2004-02-01 00:00:00

abstract：:There is a high incidence of low back pain (LBP) associated with occupations requiring sustained and/or repetitive lumbar flexion (SLF and RLF, respectively), which cause creep of the viscoelastic tissues. The purpose of this study was to determine the effect of creep on lumbar biomechanics and facet joint capsule (FJ...

journal_title：Annals of biomedical engineering

authors： Little JS,Khalsa PS

更新日期：2005-03-01 00:00:00

abstract：:Vascular diseases are an increasing health issue, and common alloplastic, allogenic or autologous vascular grafts show frequent complications. The aim of this study is to develop an acellular, xenogenic bypass-graft from a bovine carotid artery (BAC) using detergent-based protocols. We compared decellularization with ...

journal_title：Annals of biomedical engineering

authors： Daugs A,Hutzler B,Meinke M,Schmitz C,Lehmann N,Markhoff A,Bloch O

更新日期：2017-11-01 00:00:00

abstract：:We and others have shown that changing surface characteristics of the spacer implanted during the first Masquelet stage alters some aspects of membrane development. Previously we demonstrated that titanium (TI) spacers create membranes that are better barriers to movement of solutes > 70 kDa in size than polymethyl me...

journal_title：Annals of biomedical engineering

authors： Toth Z,Roi M,Evans E,Watson JT,Nicolaou D,McBride-Gagyi S

更新日期：2019-01-01 00:00:00

abstract：:We developed muscle-tendon models incorporating Hill-type structure and length-dependent coupling between activation and velocity. The models were evaluated in electrically stimulated cat soleus muscles. Dynamic model parameters were estimated by a nonlinear parameter estimation algorithm from input-output data obtain...

journal_title：Annals of biomedical engineering

authors： Shue GH,Crago PE

更新日期：1998-05-01 00:00:00

abstract：:Uncomplicated acute type B aortic dissections are usually treated medically, but they can become acutely complicated by rapid expansion, rupture and malperfusion syndromes and in the longer term by chronic dilatation and aortic aneurysm formation. The objective of this study is to use computational fluid dynamics reco...

journal_title：Annals of biomedical engineering

authors： Cheng Z,Wood NB,Gibbs RG,Xu XY

更新日期：2015-01-01 00:00:00

abstract：:The blood-brain barrier (BBB) is a major obstacle for drug delivery to the brain. To seek for in vitro BBB models that are more accessible than animals for investigating drug transport across the BBB, we compared four in vitro cultured cell models: endothelial monoculture (bEnd3 cell line), coculture of bEnd3 and prim...

journal_title：Annals of biomedical engineering

authors： Li G,Simon MJ,Cancel LM,Shi ZD,Ji X,Tarbell JM,Morrison B 3rd,Fu BM

更新日期：2010-08-01 00:00:00

abstract：:Measurement of cell shortening is an important technique for assessment of physiology and pathophysiology of cardiac myocytes. Many types of heart disease are associated with decreased myocyte shortening, which is commonly caused by structural and functional remodeling. Here, we present a new approach for local measur...

journal_title：Annals of biomedical engineering

authors： Lichter J,Li H,Sachse FB

更新日期：2016-10-01 00:00:00

abstract：:Microfluidic devices aim at miniaturizing, automating, and lowering the cost of chemical and biological sample manipulation and detection, hence creating new opportunities for lab-on-a-chip platforms. Recently, optofluidic devices have also emerged where optics is used to enhance the functionality and the performance ...

journal_title：Annals of biomedical engineering

authors： Bishara W,Isikman SO,Ozcan A

更新日期：2012-02-01 00:00:00

abstract：:Computing the numerical solution of the bidomain equations is widely accepted to be a significant computational challenge. In this study we extend a previously published semi-implicit numerical scheme with good stability properties that has been used to solve the bidomain equations (Whiteley, J.P. IEEE Trans. Biomed. ...

journal_title：Annals of biomedical engineering

authors： Whiteley JP

更新日期：2008-08-01 00:00:00

abstract：:Optimal treatment of proximal humerus fractures remains controversial. Locking plates offer theoretical advantages but are associated with complications in the clinic. This study aimed to perform parametric design optimisation of proximal humerus plates to enhance their mechanical performance. A finite element (FE) mo...

journal_title：Annals of biomedical engineering

authors： Jabran A,Peach C,Zou Z,Ren L

更新日期：2019-02-01 00:00:00

abstract：:We propose a novel method to reconstruct the hypothetical geometry of the healthy vasculature prior to intracranial aneurysm (IA) formation: a Frenet frame is calculated along the skeletonization of the arterial geometry; upstream and downstream boundaries of the aneurysmal segment are expressed in terms of the local ...

journal_title：Annals of biomedical engineering

authors： Chen H,Selimovic A,Thompson H,Chiarini A,Penrose J,Ventikos Y,Watton PN

更新日期：2013-07-01 00:00:00

abstract：:Continuum-level finite element models (FEMs) of the humerus offer the ability to evaluate joint replacement designs preclinically; however, experimental validation of these models is critical to ensure accuracy. The objective of the current study was to quantify experimental full-field strain magnitudes within osteoar...

journal_title：Annals of biomedical engineering

authors： Kusins J,Knowles N,Columbus M,Oliviero S,Dall'Ara E,Athwal GS,Ferreira LM

更新日期：2020-12-01 00:00:00

abstract：:A comparison was made between turbulence calculated by subtracting an ensemble average from the instantaneous velocity and calculations made with a high pass digital filter. Velocity was measured with a laser Doppler anemometer in vitro in the region of a normal porcine aortic valve and in patients with a hot film ane...

journal_title：Annals of biomedical engineering

authors： Walburn FJ,Sabbah HN,Stein PD

更新日期：1983-01-01 00:00:00

abstract：:Concussion tolerance and head impact exposure are highly variable among football players. Recent findings highlight that head impact data analyses need to be performed at the subject level. In this paper, we describe a method of characterizing concussion risk between individuals using a new survival analysis technique...

journal_title：Annals of biomedical engineering

authors： Rowson S,Campolettano ET,Duma SM,Stemper B,Shah A,Harezlak J,Riggen L,Mihalik JP,Brooks A,Cameron KL,Svoboda SJ,Houston MN,McAllister T,Broglio S,McCrea M

更新日期：2020-11-01 00:00:00

abstract：:Using a three-dimensional propagation model of the human ventricular myocardium, we studied the role of fibrous structure in generating epicardial potential maps. This model represents the myocardium as an anisotropic bidomain with an equal anisotropy ratio, and it incorporates a realistic representation of anatomical...

journal_title：Annals of biomedical engineering

authors： Hren R,Nenonen J,Horácek BM

更新日期：1998-11-01 00:00:00

abstract：:The local dilation of the infrarenal abdominal aorta, termed an abdominal aortic aneurysm (AAA), is often times asymptomatic and may eventually result in rupture-an event associated with a significant mortality rate. The estimation of in-vivo stresses within AAAs has been proposed as a useful tool to predict the likel...

journal_title：Annals of biomedical engineering

authors： Vande Geest JP,Schmidt DE,Sacks MS,Vorp DA

更新日期：2008-06-01 00:00:00

abstract：:We have studied the interaction of high frequency jet ventilation with cardiovascular pressures and flows. Results in dogs show that the amplitude of all intrathoracic pressures and flows fluctuate with a frequency equal to the difference between the heart rate and ventilator rate. The magnitude of this amplitude vari...

journal_title：Annals of biomedical engineering

authors： Mitzner W,Gioia F,Weinmann GG,Robotham JL,Ehrlich W

更新日期：1987-01-01 00:00:00

abstract：:The nonlinear diffusion-reaction equations describing the nonequilibrium transport of CO2 through flat layers of complex but homogeneous aqueous media were solved by an approximate analytical method called the "Combined Damköhler Number" (CDN) technique. Unlike other approximate analytical solutions, the CDN technique...

journal_title：Annals of biomedical engineering

authors： Hoofd LJ,Tong RR,Stroeve P

更新日期：1986-01-01 00:00:00

abstract：:High energy laser has emerged to be an important surgical tool in medical technology. However, the application of laser energy to drill or cut a bone is still in an experimental state. In order to estimate the adequacy of laser heating of bone surface and at the same time minimize the damage to the bone tissue, we dev...

journal_title：Annals of biomedical engineering

authors： Chen II,Saha S

更新日期：1987-01-01 00:00:00