Contourlet-based features for computerized tumor detection in capsule endoscopy images.

abstract：:The most widely implanted prosthetic valve is the mechanical bileaflet. Recent clinical experiences suggest that some designs are more prone to thromboembolic episodes than others. This study evaluated the hinge flow and near-field forward flow of the new St. Jude Medical Regent bileaflet mechanical heart valve. Laser...

journal_title：Annals of biomedical engineering

authors： Ellis JT,Travis BR,Yoganathan AP

更新日期：2000-05-01 00:00:00

abstract：:The cerebral blood flow (CBF) response to changes in perfusion pressure mediated through decreases in arterial pressure, increases in cerebrospinal fluid (CSF) pressure and increases in jugular venous pressure was studied in anesthetized dogs. A preparation was developed in which each of the three relevant pressures c...

journal_title：Annals of biomedical engineering

authors： Wagner EM,Traystman RJ

更新日期：1985-01-01 00:00:00

abstract：:Presented is a discussion of steps towards the creation of a database of the microcirculation encompassing anatomical and functional experimental data, and conceptual and computational models. The discussion includes issues of database utility, organization, data deposition, and linkage to other databases. The databas...

journal_title：Annals of biomedical engineering

authors： Popel AS,Greene AS,Ellis CG,Ley KF,Skalak TC,Tonellato PJ

更新日期：1998-11-01 00:00:00

abstract：:Quantitative analysis of breast morphometry is critical to breast plastic surgery. Recently, three-dimensional (3D) photography has emerged as a strong new alternative for breast morphometry analysis in comparison to other existing techniques. 3D photography enables the capture of the entire breast surface topology vi...

journal_title：Annals of biomedical engineering

authors： Chen D,Chittajallu DR,Passalis G,Kakadiaris IA

更新日期：2010-05-01 00:00:00

abstract：:The effect of hemodynamic shear stress on endothelial gene expression was investigated in the porcine iliac arteries. A novel statistical approach was applied to computational fluid dynamics simulations of the iliac artery flow field to identify three anatomical regions likely to experience high, medium, and low level...

journal_title：Annals of biomedical engineering

authors： LaMack JA,Himburg HA,Zhang J,Friedman MH

更新日期：2010-07-01 00:00:00

abstract：:In this paper, an intelligent proportional-integral-derivative (PID) control method is introduced to the robotic testing system for the biomechanical study of human musculoskeletal joints. For the testing system, the robot is a highly nonlinear and heavily coupled complicated system, and the human spinal specimen also...

journal_title：Annals of biomedical engineering

authors： Tian L

更新日期：2004-06-01 00:00:00

abstract：:Interstitial fluid flow, critical for macromolecular transport, was recently shown to drive fibroblast differentiation and perpendicular cell and matrix alignment in 3D collagen cultures. Here we explore the mechanisms underlying this flow-induced cell and collagen alignment. Cell and matrix alignment was assessed fro...

journal_title：Annals of biomedical engineering

authors： Ng CP,Swartz MA

更新日期：2006-03-01 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：:The applicability of a computer model, which relates the transmural mechanical distribution in the left ventricle (LV) to its global function at different loading conditions, was evaluated in patients with normal to near normal LV function undergoing cardiac catheterization. Left ventriculography and measurements of a...

journal_title：Annals of biomedical engineering

authors： Abboud L,Beyar R,Battler A,Rat M,Cohen A,Sideman S

更新日期：1990-01-01 00:00:00

abstract：:The bending stiffness of a phospholipid bilayer (Kc) was measured by forming thin bilayer cylinders (tethers) from giant phospholipid vesicles. Based on the balance of forces, the tether force was expected to be proportional to the square root of the membrane tension, with a constant of proportionality containing Kc. ...

journal_title：Annals of biomedical engineering

authors： Heinrich V,Waugh RE

更新日期：1996-09-01 00:00:00

abstract：:The field of percutaneous coronary intervention has witnessed many progressions over the last few decades, more recently with the advancement of fully degradable bioabsorbable stents. Bioabsorbable materials, such as metallic alloys and aliphatic polyesters, have the potential to yield stents which provide temporary s...

journal_title：Annals of biomedical engineering

authors： Boland EL,Shine R,Kelly N,Sweeney CA,McHugh PE

更新日期：2016-02-01 00:00:00

abstract：:We describe the development of experimental platforms to quantify the regeneration of injured central nervous system (CNS) neurons by combining engineering technologies and primary neuronal cultures. Although the regeneration of CNS neurons is an important area of research, there are no currently available methods to ...

journal_title：Annals of biomedical engineering

authors： Kim HJ,Park JW,Byun JH,Vahidi B,Rhee SW,Jeon NL

更新日期：2012-06-01 00:00:00

abstract：:Electrical potentials in mechanically loaded bone have been implicated as signals in the bone remodeling cycle. Recently, interest has grown in exploiting this phenomenon to develop electrically active ceramics for implantation in hard tissue which may induce improved biological responses. Both polarized hydroxyapatit...

journal_title：Annals of biomedical engineering

authors： Baxter FR,Bowen CR,Turner IG,Dent AC

更新日期：2010-06-01 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

abstract：:The pulmonary microvasculature offers a heterogeneous barrier to the motion of large solutes as they pass between blood and lymph. While this barrier has been approximated by a few discrete pathways or by statistical ensembles of many pathways, these descriptions only partly capture the structural and functional prope...

journal_title：Annals of biomedical engineering

authors： McNamee JE

更新日期：1990-01-01 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：:Elastin is an essential component of arteries which provides structural integrity and instructs smooth muscle cells to adopt a quiescent state. Despite interaction of endothelial cells with elastin in the internal elastic lamina, the potential for exploiting this interaction therapeutically has not been explored in de...

journal_title：Annals of biomedical engineering

authors： Wilson BD,Gibson CC,Sorensen LK,Guilhermier MY,Clinger M,Kelley LL,Shiu YT,Li DY

更新日期：2011-01-01 00:00:00

abstract：:Development of increasingly complex integrated cellular systems will be a major challenge for the next decade and beyond, as we apply the knowledge gained from the sub-disciplines of regenerative medicine, synthetic biology, micro-fabrication and nanotechnology, systems biology, and developmental biology. In this pros...

journal_title：Annals of biomedical engineering

authors： Kamm RD,Bashir R

更新日期：2014-02-01 00:00:00

abstract：:Although medical specialties have recognized the importance of using ultrasonic imaging, dentistry is only beginning to discover its benefit. This has particularly been important in the field of periodontics which studies infections in the gum and bone tissues that surround the teeth. This study investigates the feasi...

journal_title：Annals of biomedical engineering

authors： Mahmoud AM,Ngan P,Crout R,Mukdadi OM

更新日期：2010-11-01 00:00:00

abstract：:Naphthalene is a toxicant with unusual species and tissue specificity that has been the subject of in vitro studies. We describe a preliminary physiologically based pharmacokinetic (PBPK) model for naphthalene constructed solely from in vitro data for comparison to animal data without the use of adjustable parameters....

journal_title：Annals of biomedical engineering

authors： Sweeney LM,Shuler ML,Quick DJ,Babish JG

更新日期：1996-03-01 00:00:00

abstract：:A mathematical model is presented that estimates joint kinematics and kinetics using measured external resultant loads and readily available parameters. The musculo-skeletal system was represented by a planar three degrees of freedom open kinematic chain. Information extraction was limited to the flexion-extension fun...

journal_title：Annals of biomedical engineering

authors： Mazzà C,Cappozzo A

更新日期：2004-05-01 00:00:00

abstract：:Clinicians generally assume that Medical Compression Stockings (MCS) work by reducing vein luminal diameter and, in this way, help to prevent blood pooling. Conflicting results have been reported however in the case of lower leg deep veins which call into question this hypothesis. The purpose of this contribution is t...

journal_title：Annals of biomedical engineering

authors： Rohan PY,Badel P,Lun B,Rastel D,Avril S

更新日期：2015-02-01 00:00:00

abstract：:One of the major functions of the cardiovascular system is to deliver blood to the microcirculation where exchange of mass and energy can take place. In the present article, we will provide an overview of the state-of-the-art computational methods for modeling of red blood cell (RBC) rheology and dynamics in the micro...

journal_title：Annals of biomedical engineering

authors： Cristini V,Kassab GS

更新日期：2005-12-01 00:00:00

abstract：:In this paper, a new method for quantification of rigidity in elbow joint of Parkinsonian patients is introduced. One of the most known syndromes in Parkinson's disease (PD) is increased passive stiffness in muscles, which leads to rigidity in joints. Clinical evaluation of stiffness in wrist and/or elbow, commonly us...

journal_title：Annals of biomedical engineering

authors： Sepehri B,Esteki A,Ebrahimi-Takamjani E,Shahidi GA,Khamseh F,Moinodin M

更新日期：2007-12-01 00:00:00

abstract：:The nonlinear dynamic properties of action potential encoding were studied in mechanosensory neurons innervating the slits of a slit-sense organ in the tropical wandering spider, Cupiennius salei. The organ contains two types of neurons that are morphologically similar but have different dynamic properties. Type A neu...

journal_title：Annals of biomedical engineering

authors： French AS,Sekizawa SI,Höger U,Torkkeli PH

更新日期：2001-03-01 00:00:00

abstract：:Impedance data, e.g., system responses, from perturbing small amplitude applied sinusoid signals of near DC to high kilohertz frequencies, give chemical information. Analysis of frequency-dependent imaginary and real impedance proceeds from equivalent analog circuit elements to chemical and physical significance deter...

journal_title：Annals of biomedical engineering

authors： Buck RP

更新日期：1992-01-01 00:00:00

abstract：:In this paper, we aim to establish a new mathematical model that relates pulse wave velocity (PWV) to blood pressure (BP) for continuous and noninvasive BP measurement. For the first time, we derive an ordinary differential equation (ODE) expressing the fundamental relation between BP, elastic modulus G and PWV. The g...

journal_title：Annals of biomedical engineering

authors： Chen Y,Wen C,Tao G,Bi M,Li G

更新日期：2009-11-01 00:00:00

abstract：:The aim of this study was to establish in vitro bench-tests of left atrial appendage occlusion (LAAo) devices regarding tug force, radial force and sealing capacity. Two LAAo devices, namely the WATCHMAN™ and the Occlutech®, of three different sizes underwent testing in novel dedicated in vitro setups. Radial force wa...

journal_title：Annals of biomedical engineering

authors： Menne MF,Schrickel JW,Nickenig G,Al-Kassou B,Nelles D,Schmitz-Rode T,Steinseifer U,Sedaghat A

更新日期：2018-09-01 00:00:00

abstract：:Accurate assessment of blood platelet function is essential in understanding thrombus formation which plays a central role in cardiovascular disease. Parallel plate flow chambers have been widely used as they allow for platelet adhesion on a collagen surface at physiologically relevant fluid mechanical forces. Standar...

journal_title：Annals of biomedical engineering

authors： Sarvepalli DP,Schmidtke DW,Nollert MU

更新日期：2009-07-01 00:00:00

abstract：:In vitro stent-induced thromboembolism was altered by the presence of residual stenoses placed upstream or placed upstream and downstream of the stent. Heparinized (3 micro/ml) bovine blood was gravity fed through a conduit with a deployed coronary stent. Embolism was continuously monitored using a light-scattering mi...

journal_title：Annals of biomedical engineering

authors： Sukavaneshvar S,Rosa GM,Solen KA

更新日期：2000-02-01 00:00:00