Interaction between high frequency jet ventilation and cardiovascular function.

abstract：:The purpose of this study is to measure the transmural pressure-cross sectional area relation of micro tubes (240 microns diameter) and to compare the measured perfusion pressure-flow relation with the pressure-flow relation calculated from the experimental pressure-cross sectional area relation. The microtubes are ma...

journal_title：Annals of biomedical engineering

authors： Sipkema P,Westerhof N

更新日期：1989-01-01 00:00:00

abstract：:A kinetic model based on first principles, for β(2)-microglobulin, is presented to obtain precise parameter estimates for individual patient. To reduce the model complexity, the number of model parameters was reduced using a priori identifiability analysis. The model validity was confirmed with the clinical data of te...

journal_title：Annals of biomedical engineering

authors： Maheshwari V,Samavedham L,Rangaiah GP

更新日期：2011-12-01 00:00:00

abstract：:An MR image-based computational model of a murine KHT sarcoma is presented that allows the calculation of plasma fluid and solute transport within tissue. Such image-based models of solid tumors may be used to optimize patient-specific therapies. This model incorporates heterogeneous vasculature and tissue porosity to...

journal_title：Annals of biomedical engineering

authors： Pishko GL,Astary GW,Mareci TH,Sarntinoranont M

更新日期：2011-09-01 00:00:00

abstract：:Classically, the primary tool for quantifying the dynamics of vergence and other eye movements has been the main sequence. The main sequence is a plot of peak velocity versus response amplitude and is particularly useful for comparing the dynamics of a large number of eye movements over a range of response amplitudes....

journal_title：Annals of biomedical engineering

authors： Alvarez TL,Semmlow JL,Yuan W,Munoz P

更新日期：1999-05-01 00:00:00

abstract：:This paper presents the permeability analysis of neuroactive drugs and correlation with in vivo brain/plasma ratios in a dynamic microfluidic blood-brain barrier (BBB) model. Permeability of seven neuroactive drugs (Ethosuximide, Gabapentin, Sertraline, Sunitinib, Traxoprodil, Varenicline, PF-304014) and trans-endothe...

journal_title：Annals of biomedical engineering

authors： Booth R,Kim H

更新日期：2014-12-01 00:00:00

abstract：:Continuous gradients exist at osteochondral interfaces, which may be engineered by applying spatially patterned gradients of biological cues. In the present study, a protein-loaded microsphere-based scaffold fabrication strategy was applied to achieve spatially and temporally controlled delivery of bioactive signals i...

journal_title：Annals of biomedical engineering

authors： Dormer NH,Singh M,Wang L,Berkland CJ,Detamore MS

更新日期：2010-06-01 00:00:00

abstract：:Functional electrical stimulation (FES) to lower extremity (LE) muscles is used by individuals post-stroke as an alternative to mechanical orthotic devices during gait or as a training modality during rehabilitation. Technological developments which improve the feasibility, accessibility and effectiveness of FES syste...

journal_title：Annals of biomedical engineering

authors： Kafri M,Laufer Y

更新日期：2015-02-01 00:00:00

abstract：:Collagen, the most commonly used extra-cellular matrix protein for tissue engineering applications, displays poor mechanical properties. Here, we report on the preparation and characterization of novel multi-component composite systems that incorporate a genetically engineered, biocompatible polymer (elastin-like poly...

journal_title：Annals of biomedical engineering

authors： Wheeler TS,Sbravati ND,Janorkar AV

更新日期：2013-10-01 00:00:00

abstract：:The scarcity of data available on the best approach for pulmonary fetal valve replacement or implantation necessitate an investigation on whether practices using adult transcatheter valves could be translated to fetal applications. The objective of this study is to evaluate the hemodynamic characteristics and the turb...

journal_title：Annals of biomedical engineering

authors： Hatoum H,Gooden S,Heitkemper M,Blum KM,Zakko J,Bocks M,Yi T,Wu YL,Wang Y,Breuer CK,Dasi LP

更新日期：2020-06-01 00:00:00

abstract：:A number of human head finite element (FE) models have been developed from different research groups over the years to study the mechanisms of traumatic brain injury. These models can vary substantially in model features and parameters, making it important to evaluate whether simulation results from one model are read...

journal_title：Annals of biomedical engineering

authors： Ji S,Ghadyani H,Bolander RP,Beckwith JG,Ford JC,McAllister TW,Flashman LA,Paulsen KD,Ernstrom K,Jain S,Raman R,Zhang L,Greenwald RM

更新日期：2014-01-01 00:00:00

abstract：:In an ovine femur model, proliferative woven bone fills critically sized defects enveloped by periosteum within 2 weeks of treatment with the one-stage bone-transport surgery. We hypothesize that mechanical loading modulates this process. Using high-definition optical strain measurements we determined prevailing perio...

journal_title：Annals of biomedical engineering

authors： McBride SH,Dolejs S,Brianza S,Knothe U,Knothe Tate ML

更新日期：2011-05-01 00:00:00

abstract：:The planar fibrous connective tissues of the body are composed of a dense extracellular network of collagen and elastin fibers embedded in a ground matrix, and thus can be thought of as biocomposites. Thus, the quantification of fiber architecture is an important step in developing an understanding of the mechanics of...

journal_title：Annals of biomedical engineering

authors： Sacks MS,Smith DB,Hiester ED

更新日期：1997-07-01 00:00:00

abstract：:Mechanical cues arising from extracellular matrices greatly affect cellular properties, and hence, are of significance in designing biomaterials. In this study, a DNA crosslinked hydrogel was employed to examine cellular responses of spinal cord neurons to substrate compliances. Using DNA as crosslinkers in polymeric ...

journal_title：Annals of biomedical engineering

authors： Jiang FX,Yurke B,Firestein BL,Langrana NA

更新日期：2008-09-01 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

abstract：:The combination of gene therapy and chemotherapy has showed increased therapeutic efficacy in the treatment of cancers, but it is not well investigated about the actual coordination pattern between therapeutic gene and chemical drug. In this work, p53/BPEI-β-CD/AD-dox complex was fabricated and employed to investigate...

journal_title：Annals of biomedical engineering

authors： Xie B,Peng J,Wang S,Zhang X,Nie H

更新日期：2016-11-01 00:00:00

abstract：:Three animal models were evaluated in this study involving head impacts of the rat, including the Marmarou drop-weight and two momentum-exchange techniques. In series 1, 36 Wistar rats were hit on the side of the free-moving head using Marmarou's 450 g impact mass at 4.4, 5.4, and 6.3 m/s. Head acceleration was measur...

journal_title：Annals of biomedical engineering

authors： Viano DC,Hamberger A,Bolouri H,Säljö A

更新日期：2012-01-01 00:00:00

abstract：:In the past decades, vascular tissue engineering has made great strides towards bringing engineered vascular tissues to the clinics and, in parallel, obtaining in-lab tools for basic research. Herein, we propose the design of a novel dual-mode bioreactor, useful for the fabrication (construct mode) and in vitro stimul...

journal_title：Annals of biomedical engineering

authors： Bono N,Meghezi S,Soncini M,Piola M,Mantovani D,Fiore GB

更新日期：2017-06-01 00:00:00

abstract：:In this study, we introduce the fast wavelet transform as a method for characterizing maturational changes in electrocortical activity, respiratory activity, and blood pressure in fetal lambs in early (110-122 days), mid (123-135 days), and late (136-144 days) third trimester (term 145 days). Each recording was 2 hr i...

journal_title：Annals of biomedical engineering

authors： Akay M,Szeto HH

更新日期：1995-09-01 00:00:00

abstract：:Pulmonary arterial hypertension (PAH) is caused by extensive pulmonary vascular remodeling that increases right ventricular (RV) afterload and leads to RV failure. PAH predominantly affects women; paradoxically, female PAH patients have better outcomes than men. The roles of estrogen in PAH remain controversial, which...

journal_title：Annals of biomedical engineering

authors： Liu A,Hacker T,Eickhoff JC,Chesler NC

更新日期：2017-03-01 00:00:00

abstract：:To study pulsatile pressure-flow rate relationships in the intact pulmonary vascular network of mice, we developed a protocol for measuring pulmonary vascular resistance and impedance in isolated, ventilated, and perfused mouse lungs. We used pulmonary emboli to validate the effect of vascular obstruction on resistanc...

journal_title：Annals of biomedical engineering

authors： Tuchscherer HA,Webster EB,Chesler NC

更新日期：2006-04-01 00:00:00

abstract：:Parameters of physiological models are commonly associated in an input-output experiment with a specific pattern of the system response. This association is often made on an intuitive basis by traditional sensitivity analysis, i.e., by inspecting the variations of model output trajectories with respect to parameter va...

journal_title：Annals of biomedical engineering

authors： Thomaseth K,Cobelli C

更新日期：1999-09-01 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：:The concept of body force (force per unit volume) is introduced to account for the effect of the force generated in the radial direction by the active state of the myocardium in an elastic model of the left ventricle represented as a thick-walled cylinder contracting symmetrically. Experimental evidence for the validi...

journal_title：Annals of biomedical engineering

authors： Shoucri RM

更新日期：1991-01-01 00:00:00

abstract：:The effects of tissue hydration and fixed charge density on hydraulic permeability and creep behavior of cartilaginous tissues have been investigated using the triphasic theory and finite element methods. The empirical model for hydraulic permeability of uncharged gels and Mackie and Meares (1955) model for ion diffus...

journal_title：Annals of biomedical engineering

authors： Gu WY,Yao H

更新日期：2003-11-01 00:00:00

abstract：:We attempted to estimate in living adherent epithelial alveolar cells, the degree of structural and mechanical heterogeneity by considering two individualized cytoskeleton components, i.e., a submembranous "cortical" cytoskeleton and a "deep" cytoskeleton (CSK). F-actin structure characterizing each CSK component was ...

journal_title：Annals of biomedical engineering

authors： Laurent VM,Fodil R,Cañadas P,Féréol S,Louis B,Planus E,Isabey D

更新日期：2003-11-01 00:00:00

abstract：:A coculture of endothelial cells (ECs) and smooth muscle cells (SMCs), which mimics cellular interactions appearing in vivo, has been performed in studies on the relationship between atherogenesis and fluid shear stress conditions. Although healthy arteries in vivo consist of contractile phenotype SMCs, cultured cells...

journal_title：Annals of biomedical engineering

authors： Sakamoto N,Kiuchi T,Sato M

更新日期：2011-11-01 00:00:00

abstract：:Biodegradable implants have demonstrated clinical success in simple applications (e.g., absorbable sutures) and have shown great potential in many other areas of interventional medicine, such as localized drug delivery, engineered tissue scaffolding, and structural implants. For endovascular stenting and musculoskelet...

journal_title：Annals of biomedical engineering

authors： Soares JS,Moore JE Jr

更新日期：2016-02-01 00:00:00

abstract：:Despite cellular environments having dynamic characteristics, many laboratories utilized static polyacrylamide hydrogels to study the ECM-cell relationship. To attain a more in vivo like environment, we have developed a dynamic, DNA-crosslinked hydrogel (DNA gel). Through the controlled delivery of DNA, we can tempora...

journal_title：Annals of biomedical engineering

authors： Previtera ML,Trout KL,Verma D,Chippada U,Schloss RS,Langrana NA

更新日期：2012-05-01 00:00:00

abstract：:The objective of this work is to develop understanding of the local fluid dynamic mechanisms that underpin gas exchange in high-frequency oscillatory ventilation (HFOV). The flow field during HFOV was investigated experimentally using particle image velocimetry in idealized and realistic models of a single bifurcation...

journal_title：Annals of biomedical engineering

authors： Heraty KB,Laffey JG,Quinlan NJ

更新日期：2008-11-01 00:00:00

abstract：:For several years, Virginia Tech and other schools have measured the frequency and severity of head impacts sustained by collegiate American football players in real time using the Head Impact Telemetry (HIT) System of helmet-mounted accelerometers. In this study, data from 37,128 head impacts collected at Virginia Te...

journal_title：Annals of biomedical engineering

authors： Funk JR,Rowson S,Daniel RW,Duma SM

更新日期：2012-01-01 00:00:00