Bymixer provides on-line calibration of measurement of CO2 volume exhaled per breath.

abstract：BACKGROUND:Common-mode noise degrades cardiovascular signal quality and diminishes measurement accuracy. Filtering to remove noise components in the frequency domain often distorts the signal. METHOD:Two adaptive noise canceling (ANC) algorithms were tested to adjust weighted reference signals for optimal subtraction ...

journal_title：Annals of biomedical engineering

authors： Ciaccio EJ,Micheli-Tzanakou E

更新日期：2007-07-01 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：:Articular cartilage is an avascular connective tissue responsible for bearing loads. Cell signaling plays a central role in cartilage homeostasis and tissue engineering by directing chondrocytes to synthesize/degrade the extracellular matrix or promote inflammatory responses. The aim of this paper was to investigate a...

journal_title：Annals of biomedical engineering

authors： Neidlin M,Korcari A,Macheras G,Alexopoulos LG

更新日期：2018-02-01 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：:Twenty-one 3.5-month-old female Sprague-Dawley rats were randomly assigned to three groups: BTX group, in which each rat received a single intramuscular injection of 2 U of Clostridium botulinum toxin (BTX) in the quadriceps femoris muscle of the right hind limb; BTX + SR group, in which each rat received a BTX inject...

journal_title：Annals of biomedical engineering

authors： Sheng ZF,Ma YL,Tong D,Fang DY,Liang QC,Liu LH,Zhang J,Liao EY

更新日期：2012-03-01 00:00:00

abstract：:This study was undertaken to investigate the possible origin of some cutaneously recorded higher frequency electrogastrographic signals. Computer modeling of gastric electrical uncoupling was performed using previously described conoidal dipole model. Cutaneous electrogastrograms were simulated after uncoupling was in...

journal_title：Annals of biomedical engineering

authors： Mintchev MP,Bowes KL

更新日期：1997-11-01 00:00:00

abstract：:Arterial responses to diverse pathologies and insults likely occur via similar mechanisms. For example, many studies suggest that the natural process of aging and isolated systolic hypertension share many characteristics in arteries, including loss of functional elastin, decreased smooth muscle tone, and altered rates...

journal_title：Annals of biomedical engineering

authors： Valentín A,Humphrey JD,Holzapfel GA

更新日期：2011-07-01 00:00:00

abstract：:Patients with aortic stenosis present with calcium deposits on the native aortic valve, which can result in non-concentric expansion of Transcatheter Aortic Valve Replacement (TAVR) stents. The objective of this study is to evaluate whether eccentric deployment of TAVRs lead to turbulent blood flow and blood cell dama...

journal_title：Annals of biomedical engineering

authors： Gunning PS,Saikrishnan N,McNamara LM,Yoganathan AP

更新日期：2014-06-01 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：:Newborns with single ventricle physiology are usually palliated with a multi-staged procedure. When cardiovascular complications e.g., collateral vessel formation occur during the inter-stage periods, further treatments are required. An 8-month-old patient, who underwent second stage (i.e., bi-directional Glenn, BDG) ...

journal_title：Annals of biomedical engineering

authors： Corsini C,Baker C,Baretta A,Biglino G,Hlavacek AM,Hsia TY,Kung E,Marsden A,Migliavacca F,Vignon-Clementel I,Pennati G,Modeling of Congenital Hearts Alliance (MOCHA) Investigators.

更新日期：2015-06-01 00:00:00

abstract：:We describe a model for the Compound Action Currents (CACs) and Compound Action Potentials (CAPs) produced by a peripheral nerve bundle in vitro. The Single Fiber Action Currents (SFACs) and the extracellular Single Fiber Action Potentials (SFAPs) are calculated using a generalized volume conduction model. Frequency-d...

journal_title：Annals of biomedical engineering

authors： Wijesinghe RS,Gielen FL,Wikswo JP Jr

更新日期：1991-01-01 00:00:00

abstract：:Validation is a critical step in finite element model (FEM) development. This study focuses on the validation of the Global Human Body Models Consortium full body average male occupant FEM in five localized loading regimes-a chest impact, a shoulder impact, a thoracoabdominal impact, an abdominal impact, and a pelvic ...

journal_title：Annals of biomedical engineering

authors： Vavalle NA,Davis ML,Stitzel JD,Gayzik FS

更新日期：2015-09-01 00:00:00

abstract：:Proper replacement or repair of damaged tendons or ligaments requires functionally engineered tissue that mimics their native mechanical properties. While tendon structure-function relationships are generally assumed, there exists little quantitative evidence of the roles of distinct tendon components in tendon functi...

journal_title：Annals of biomedical engineering

authors： Robinson PS,Lin TW,Jawad AF,Iozzo RV,Soslowsky LJ

更新日期：2004-07-01 00:00:00

abstract：:We propose a mathematical model for analyses of the elastic properties of the wall of the outer hair cell (OHC) in the inner ear. The model reflects the properties of the major components of the OHC wall: the subsurface cisternae, the cortical lattice, the plasma membrane, and the radial pillars. The wall is treated a...

journal_title：Annals of biomedical engineering

authors： Spector AA,Brownell WE,Popel AS

更新日期：1998-01-01 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：:Traditionally, measurement of pulmonary O2 uptake uses mass balance of N2 to correct for differences between inspired and expired volume (V) due to temperature (T) and relative humidity (RH). Often during anesthesia, N2 balance cannot be invoked due to high inspired O2 fraction (FIO2) or nonsteady state conditions. Th...

journal_title：Annals of biomedical engineering

authors： Breen PH

更新日期：2000-09-01 00:00:00

abstract：:The finite element method is employed to simulate two-dimensional (axisymmetric) drug diffusion from a finite drug reservoir into the skin. The numerical formulation is based on a general mathematical model for multicomponent nonlinear diffusion that takes into account the coupling effects between the different compon...

journal_title：Annals of biomedical engineering

authors： Rim JE,Pinsky PM,van Osdol WW

更新日期：2005-10-01 00:00:00

abstract：:Peripheral nerve injuries present challenges to regeneration. Currently, the gold standard for nerve repair is an autograft that results in another region of the body suffering nerve damage. Previously, bioactive borate glass (BBG) has been studied in clinical trials to treat patients with non-healing wounds, and we h...

journal_title：Annals of biomedical engineering

authors： Gupta B,Papke JB,Mohammadkhah A,Day DE,Harkins AB

更新日期：2016-12-01 00:00:00

abstract：:For highly diffusive solutes the kinetics of blood-tissue exchange is only poorly represented by a model consisting of sets of independent parallel capillary-tissue units. We constructed a more realistic multicapillary network model conforming statistically to morphometric data. Flows through the tortuous paths in the...

journal_title：Annals of biomedical engineering

authors： Beard DA,Bassingthwaighte JB

更新日期：2000-03-01 00:00:00

abstract：:Studying human cancer from a biomechanical perspective may contribute to pathogenesis understanding which leads to the malignancy. In this study, biomechanics of suspended and adhered breast cancer cells were investigated via the micropipette aspiration method with special emphasis on comparing the cell stiffness and ...

journal_title：Annals of biomedical engineering

authors： Metsiou DN,Siatis KE,Giannopoulou E,Papachristou DJ,Kalofonos HP,Koutras A,Athanassiou G

更新日期：2019-08-01 00:00:00

abstract：:Normalized maximal ventricular power (nPWRmax) is an index of cardiac function which measures the innate blood pumping ability, or contractility, of the left ventricle (LV), and its noninvasive assessment could prove useful in a variety of patients. nPWRmax is defined as the maximum instantaneous product of LV pressur...

journal_title：Annals of biomedical engineering

authors： Setser RM,Sayre K,Flacke S,Chia J,Lunn K,Lorenz CH

更新日期：2001-11-01 00:00:00

abstract：:Wall Shear Stress (WSS) topological skeleton, composed by fixed points and the manifolds linking them, reflects the presence of blood flow features associated to adverse vascular response. However, the influence of WSS topological skeleton on vascular pathophysiology is still underexplored. This study aimed to identif...

journal_title：Annals of biomedical engineering

authors： Morbiducci U,Mazzi V,Domanin M,De Nisco G,Vergara C,Steinman DA,Gallo D

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：:We investigate the potential of prosthetic heart valves to generate abnormal flow and stress patterns, which can contribute to platelet activation and lysis according to blood damage accumulation mechanisms. High-resolution velocity measurements of the unsteady flow field, obtained with a standard particle image veloc...

journal_title：Annals of biomedical engineering

authors： Bellofiore A,Quinlan NJ

更新日期：2011-09-01 00:00:00

abstract：:Kiani et al. (Kiani, M. F., A. R. Pries, L. L. Hsu, I. H. Sarelius, and G. R. Cokelet, Am. J. Physics. 266: H1822-H1828, 1994) suggested that blood velocity, hematocrit, and nodal pressures can oscillate spontaneously in large microvascular networks in the absence of biological control. This paper presents a model of ...

journal_title：Annals of biomedical engineering

authors： Carr RT,Lacoin M

更新日期：2000-06-01 00:00:00

abstract：:Double-exposure holographic interferometry is a contactless whole-field method. Dimensional changes are visualized as a series of interference fringes overlaid on the holographic image of the femur, where each fringe represents 0.316 micron (half the wavelength of the laser light) of motion. Interferograms for intact ...

journal_title：Annals of biomedical engineering

authors： Ovryn B,Manley MT,Stern LS

更新日期：1987-01-01 00:00:00

abstract：:Neuromuscular impairment associated with cerebral palsy (CP) often leads to life-long walking deficits. Our goal was to evaluate the ability of a novel untethered wearable ankle exoskeleton to reduce the severity of gait pathology from CP. In this clinical feasibility study of five individuals with CP, we used instrum...

journal_title：Annals of biomedical engineering

authors： Lerner ZF,Harvey TA,Lawson JL

更新日期：2019-06-01 00:00:00

abstract：:During defecation, solid, semisolid or liquid stools are eliminated via the anus in a complex physiological process. Up to 25% of the population are affected by anorectal disorders that are poorly recognized and treated. We developed a new bionics device, a simulated stool named Fecobionics, to replace several current...

journal_title：Annals of biomedical engineering

authors： Sun D,Huang Z,Zhuang Z,Ma Z,Man LK,Liao D,Gregersen H

更新日期：2019-02-01 00:00:00

abstract：:Local hemodynamics are an important factor in atherosclerosis, from the development of early lesions, to the assessment of stroke risk, to determining the ultimate fate of a mature plaque. Until recently, our understanding of arterial fluid dynamics and their relationship to atherosclerosis was limited by the use of i...

journal_title：Annals of biomedical engineering

authors： Steinman DA

更新日期：2002-04-01 00:00:00

abstract：:Gap junctions play a fundamental role in intercellular communication in cardiac tissue. Various types of heart disease including hypertrophy and ischemia are associated with alterations of the spatial arrangement of gap junctions. Previous studies applied two-dimensional optical and electron-microscopy to visualize ga...

journal_title：Annals of biomedical engineering

authors： Lackey DP,Carruth ED,Lasher RA,Boenisch J,Sachse FB,Hitchcock RW

更新日期：2011-11-01 00:00:00