Evaluation of three animal models for concussion and serious brain injury.

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：:The unique resource constraints, urgency, and virulence of the coronavirus disease 2019 pandemic has sparked immense innovation in the development of barrier devices to protect healthcare providers from infectious airborne particles generated by patients during airway management interventions. Of the existing devices,...

journal_title：Annals of biomedical engineering

authors： Maloney LM,Yang AH,Princi RA,Eichert AJ,Hébert DR,Kupec TV,Mertz AE,Vasyltsiv R,Vijaya Kumar TM,Walker GJ,Peralta EJ,Hoffman JL,Yin W,Page CR

更新日期：2020-10-01 00:00:00

abstract：:The multiphoton fluorescence recovery after photobleaching (MP-FRAP) technique has been developed to measure the three-dimensional (3D) solute diffusion within biological systems. However, current 3D MP-FRAP models are based on isotropic diffusion and spatial domain analysis. The 3D anisotropic diffusion and frequency...

journal_title：Annals of biomedical engineering

authors： Shi C,Cisewski SE,Bell PD,Yao H

更新日期：2014-03-01 00:00:00

abstract：:The aim of this study was to test the differentiative effects of osteoblasts after treatment with a static magnetic field (SMF). MG63 osteoblast-like cells were exposed to a 0.4-T SMF. The differentiation markers were assessed by observing the changes in alkaline phosphatase activity and electron microscopy images. Me...

journal_title：Annals of biomedical engineering

authors： Chiu KH,Ou KL,Lee SY,Lin CT,Chang WJ,Chen CC,Huang HM

更新日期：2007-11-01 00:00:00

abstract：:Based on mathematical expressions governing the electric field, the extracellular potentials generated by a single active fiber in a restricted circular cylindrical volume conductor are evaluated. This paper examines the effect of the extent of the volume conductor, with radius b, on the extracellular potentials at di...

journal_title：Annals of biomedical engineering

authors： Trayanova N,Henriquez CS,Plonsey R

更新日期：1990-01-01 00:00:00

abstract：:Organ models are used for planning and simulation of operations, developing new surgical instruments, and training purposes. There is a substantial demand for in vitro organ phantoms, especially in urological surgery. Animal models and existing simulator systems poorly mimic the detailed morphology and the physical pr...

journal_title：Annals of biomedical engineering

authors： Adams F,Qiu T,Mark A,Fritz B,Kramer L,Schlager D,Wetterauer U,Miernik A,Fischer P

更新日期：2017-04-01 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：:An endovascular technique using a stent has been developed and successfully applied in the treatment of wide neck aneurysms. A stent can facilitate thrombosis in the aneurysm pouch while maintaining biocompatible passage of the parent artery. Insertion of the stent changes the flow characteristics inside the aneurysm ...

journal_title：Annals of biomedical engineering

authors： Rhee K,Han MH,Cha SH

更新日期：2002-07-01 00:00:00

abstract：:Electromechanical reshaping (EMR) of cartilage provides an alternative to the classic surgical techniques of modifying the shape of facial cartilages. The original embodiment of EMR required surface electrodes to be in direct contact with the entire cartilage region being reshaped. This study evaluates the feasibility...

journal_title：Annals of biomedical engineering

authors： Manuel CT,Foulad A,Protsenko DE,Sepehr A,Wong BJ

更新日期：2010-11-01 00:00:00

abstract：:This study aimed to quantify the elongation patterns of the collateral ligaments following TKA during functional activities of daily living. Using mobile video-fluoroscopy to capture radiographic images of the knee in a group of six patients, each with an ultra-congruent knee implant, tibiofemoral kinematics were reco...

journal_title：Annals of biomedical engineering

authors： Hosseini Nasab SH,Smith CR,Schütz P,Damm P,Trepczynski A,List R,Taylor WR

更新日期：2020-04-01 00:00:00

abstract：:Normal physiological mechanical forces cause constant tissue renewal in aortic valve leaflets (AVL) while altered mechanical forces incite changes in their structural and biological properties. The current study aims at characterizing the remodeling properties of AVL subjected to cyclic circumferential stretch in a st...

journal_title：Annals of biomedical engineering

authors： Balachandran K,Konduri S,Sucosky P,Jo H,Yoganathan AP

更新日期：2006-11-01 00:00:00

abstract：:Soft collagenous tissue features many hierarchies of structure, starting from tropocollagen molecules that form fibrils, and proceeding to a bundle of fibrils that form fibers. Here we report the development of an atomistically informed continuum model of collagenous tissue. Results from full atomistic and molecular m...

journal_title：Annals of biomedical engineering

authors： Tang H,Buehler MJ,Moran B

更新日期：2009-06-01 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：:During the fetal-to-neonatal transition, transvalvular pressures (TVPs) on the aortic and pulmonary valves change dramatically-but differently for each valve. We have examined changes in the molecular stability and crosslinking of collagen during this transition. Aortic and pulmonary valves were harvested from fetal a...

journal_title：Annals of biomedical engineering

authors： Aldous IG,Lee JM,Wells SM

更新日期：2010-09-01 00:00:00

abstract：:We have studied the dependence of conduction velocity (theta) on extracellular potassium concentration ([K+]o) in a model of one-dimensional conduction using an idealized strand of human atrial cells. Elevated [K+]o in the 5-20 mM range shifts the resting potential (Vrest) in the depolarizing direction and reduces inp...

journal_title：Annals of biomedical engineering

authors： Nygren A,Giles WR

更新日期：2000-08-01 00:00:00

abstract：:The function of a chamber depends on its hydrodynamic properties: isometric pressures it can exert in the operating range of distensions, compliances in the operating range of distensions, and wall-displacement resistances in the operating range of distensions. Wall-displacement resistance is the departure of pressure...

journal_title：Annals of biomedical engineering

authors： Regen DM

更新日期：1988-01-01 00:00:00

abstract：:Diluted serum provides a model of interstitial fluid that can be used to study the response of smooth muscle cells (SMCs) to interstitial flow. The effect of serum and some of its components on SMC contraction (area reduction) and intracellular calcium ([Ca2+]i) response were characterized in rat aortic SMC in vitro. ...

journal_title：Annals of biomedical engineering

authors： Ainslie K,Shi ZD,Garanich JS,Tarbell JM

更新日期：2004-12-01 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：:We develop a mathematical model of nanoparticles depositing onto and penetrating into a biofilm grown in a parallel-plate flow cell. We carry out deposition experiments in a flow cell to support the modeling. The modeling and the experiments are motivated by the potential use of polymer nanoparticles as part of a trea...

journal_title：Annals of biomedical engineering

authors： Miller JK,Neubig R,Clemons CB,Kreider KL,Wilber JP,Young GW,Ditto AJ,Yun YH,Milsted A,Badawy HT,Panzner MJ,Youngs WJ,Cannon CL

更新日期：2013-01-01 00:00:00

abstract：:This study presents a novel approach to modeling the electrocardiogram (ECG): the Gaussian pulse decomposition. Constituent waves of the ECG are decomposed into and represented by Gaussian pulses using an iterative algorithm: the chip away decomposition (ChAD) algorithm. At each iteration, a nonlinear minimization met...

journal_title：Annals of biomedical engineering

authors： Suppappola S,Sun Y,Chiaramida SA

更新日期：1997-03-01 00:00:00

abstract：:Much effort is expended in developing biomimetic scaffolds that provide the micro-architecture of native tissue with appropriate cellular niches. Such scaffolds are often seeded with progenitor cells to generate engineered replacements for diseased or damaged tissues. An alternative approach relies on biology, rather ...

journal_title：Annals of biomedical engineering

authors： Evans CH

更新日期：2015-03-01 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：:One goal of large scale clinical trials is to determine how a drug is processed by, and cleared from, the human body [i.e., its pharmacokinetic (PK) properties] and how these PK properties differ between individuals in a population (i.e., its population PK properties). Due to the high cost of these studies and the lim...

journal_title：Annals of biomedical engineering

authors： Hooker AC,Foracchia M,Dodds MG,Vicini P

更新日期：2003-01-01 00:00:00

abstract：:Dexterity of robots is highly required when it comes to integration for medical applications. Major efforts have been conducted to increase the dexterity at the distal parts of medical robots. This paper reports on developments toward integrating biocompatible conducting polymers (CP) into inherently dexterous concent...

journal_title：Annals of biomedical engineering

authors： Chikhaoui MT,Benouhiba A,Rougeot P,Rabenorosoa K,Ouisse M,Andreff N

更新日期：2018-10-01 00:00:00

abstract：:Congenital heart disease is the leading cause of infant death in the United States with over 36,000 newborns affected each year. Despite this growing problem there are few mechanical circulatory support devices designed specifically for pediatric and neonate patients. Previous research has been done investigating pedi...

journal_title：Annals of biomedical engineering

authors： Good BC,Deutsch S,Manning KB

更新日期：2016-04-01 00:00:00

abstract：:In this paper, we present the application of a semi-global inverse method for determining material parameters of biological tissues. The approach is based on the successive response surface method, and is illustrated by fitting constitutive parameters to two nonlinear anisotropic constitutive equations, one for aortic...

journal_title：Annals of biomedical engineering

authors： Einstein DR,Freed AD,Stander N,Fata B,Vesely I

更新日期：2005-12-01 00:00:00

abstract：BACKGROUND:We present a fundamental theoretical framework for analysis of energy dissipation in any component of the circulatory system and formulate the full energy budget for both venous and arterial circulations. New indices allowing disease-specific subject-to-subject comparisons and disease-to-disease hemodynamic ...

journal_title：Annals of biomedical engineering

authors： Dasi LP,Pekkan K,de Zelicourt D,Sundareswaran KS,Krishnankutty R,Delnido PJ,Yoganathan AP

更新日期：2009-04-01 00:00:00

abstract：:Cerebral blood flow (CBF) increases as arterial oxygen content falls with hypoxic (low PO2), anemic (low hemoglobin) and carbon monoxide (CO) (high carboxyhemoglobin) hypoxia. Despite a higher arterial PO2, CO hypoxia provokes a greater increase in CBF than hypoxic hypoxia. We analyzed published data using a compartme...

journal_title：Annals of biomedical engineering

authors： Sharan M,Popel AS,Hudak ML,Koehler RC,Traystman RJ,Jones MD Jr

更新日期：1998-01-01 00:00:00

abstract：:A numerical single path model of respiratory gas exchange with distributed alveolar gas sources was used to estimate the anatomical changes in small peripheral airways such as occur in chronic obstructive pulmonary diseases (COPD). A previous sensitivity analysis of the single path model showed that decreasing total a...

journal_title：Annals of biomedical engineering

authors： Schwardt JD,Neufeld GR,Baumgardner JE,Scherer PW

更新日期：1994-05-01 00:00:00

abstract：:A flow diverter (FD) is a flexible, densely braided stent-mesh device placed endoluminally across an intracranial aneurysm to induce its thrombotic occlusion. FD treatment planning using computational virtual stenting and flow simulation requires accurate representation of the expanded FD geometry. We have recently de...

journal_title：Annals of biomedical engineering

authors： Ma D,Dumont TM,Kosukegawa H,Ohta M,Yang X,Siddiqui AH,Meng H

更新日期：2013-10-01 00:00:00