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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 20.

Left atrium wall tracking from MR images for strain assessment.
PMID: 25074141 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Evin M, Redheuil A, Hatem S, Rosenbaum D, Bouazizi-Verdier K, De Cesare A, Cluzel P, Kachenoura N Tags: Comput Methods Biomech Biomed Engin Source Type: research

Increase in coronary microvascular resistances after recanalisation with drug-eluting stent.
PMID: 25074140 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Anselmi A, Harmouche M, Verhoye JP, Corbineau H, Mariano C, Maasrani M, Drochon A Tags: Comput Methods Biomech Biomed Engin Source Type: research

Thoracic aorta morphometry and endograft deployment.
PMID: 25074139 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Guivier-Curien C, Boufi M, Deplano V, Boiron O, Loundou A, Alimi Y Tags: Comput Methods Biomech Biomed Engin Source Type: research

The role of implant's surface treatment to its preload.
PMID: 25074138 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Capek L, Simunek A, Henys P, Dzan L Tags: Comput Methods Biomech Biomed Engin Source Type: research

Influence of the alveolar structure on the cell progression in the seeding of large bone scaffolds: an in silico study.
PMID: 25074137 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Lemonnier S, Naili S, Lemaire T Tags: Comput Methods Biomech Biomed Engin Source Type: research

Dynamic mesenchymal stem cells volumic seeding in a commercialized porous ceramic scaffold: a feasibility study.
PMID: 25074136 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Lemonnier S, Bouderlique T, Albanese P, Naili S, Chevallier N, Rouard H, Courty J, Lemaire T Tags: Comput Methods Biomech Biomed Engin Source Type: research

Compression, shear and bending on tissue-engineered cartilage: a numerical study.
PMID: 25074135 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Bandeiras C, Completo A, Ramos A Tags: Comput Methods Biomech Biomed Engin Source Type: research

Editorial.
PMID: 25074134 [PubMed - in process] (Source: Computer Methods in Biomechanics and Biomedical Engineering)
Source: Computer Methods in Biomechanics and Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Pudlo P Tags: Comput Methods Biomech Biomed Engin Source Type: research

A Numerical Study of Heat and Water Vapor Transfer in MDCT-Based Human Airway Models.
Abstract A three-dimensional (3D) thermo-fluid model is developed to study regional distributions of temperature and water vapor in three multi-detector row computed-tomography-based human airways with minute ventilations of 6, 15 and 30 L/min. A one-dimensional (1D) model is also solved to provide necessary initial and boundary conditions for the 3D model. Both 3D and 1D predicted temperature distributions agree well with available in vivo measurement data. On inspiration, the 3D cold high-speed air stream is split at the bifurcation to form secondary flows, with its cold regions biased toward the inner wall. The...
Source: Annals of Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Wu D, Tawhai MH, Hoffman EA, Lin CL Tags: Ann Biomed Eng Source Type: research

Cardiac Tissue Structure, Properties, and Performance: A Materials Science Perspective.
Abstract From an engineering perspective, many forms of heart disease can be thought of as a reduction in biomaterial performance, in which the biomaterial is the tissue comprising the ventricular wall. In materials science, the structure and properties of a material are recognized to be interconnected with performance. In addition, for most measurements of structure, properties, and performance, some processing is required. Here, we review the current state of knowledge regarding cardiac tissue structure, properties, and performance as well as the processing steps taken to acquire those measurements. Understanding...
Source: Annals of Biomedical Engineering - August 1, 2014 Category: Biomedical Engineering Authors: Golob M, Moss RL, Chesler NC Tags: Ann Biomed Eng Source Type: research

Biomechanical evaluation of two commonly used external fixators in the treatment of open subtalar dislocation—A finite element analysis
Subtalar dislocation is a rare injury caused by high-energy trauma. Current treatment strategies include leg casts, internal fixation and external fixation. Among these, external fixators are the most commonly used as this method is believed to provide better stabilization. However, the biomechanical stability provided by these fixators has not been demonstrated. This biomechanical study compares two commonly used external fixators, i.e. Mitkovic and Delta. CT imaging data were used to reconstruct three-dimensional models of the tibia, fibula, talus, calcaneus, navicular, cuboid, three cuneiforms and five metatarsal bones....
Source: Medical Engineering and Physics - August 1, 2014 Category: Biomedical Engineering Authors: Muhammad Hanif Ramlee, Mohammed Rafiq Abdul Kadir, Malliga Raman Murali, Tunku Kamarul Source Type: research

3D printing of MRI compatible components: Why every MRI research group should have a low-budget 3D printer
To evaluate low budget 3D printing technology to create MRI compatible components. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 1, 2014 Category: Biomedical Engineering Authors: Karl-Heinz Herrmann, Clemens Gärtner, Daniel Güllmar, Martin Krämer, Jürgen R. Reichenbach Source Type: research

[The effect of hypoxia on proliferation and osteogenic differentiation of periodontal ligament cells].
CONCLUSIONS: Hypoxia inhibits proliferation and osteogenic differentiation of human PDLCs. Supported by National Natural Science Foundation of China(81070838,81271156) and Biomedical Engineering Cross Research Foundation of Shanghai Jiao Tong University(YG2011MS31). PMID: 25338787 [PubMed - in process] (Source: Shanghai Journal of Stomatology)
Source: Shanghai Journal of Stomatology - August 1, 2014 Category: Dentistry Authors: Dong JC, Song ZC, Shu R, Li S, Lin ZK, Zhang XL Tags: Shanghai Kou Qiang Yi Xue Source Type: research

Biomechanical evaluation of two commonly used external fixators in the treatment of open subtalar dislocation—A finite element analysis
Subtalar dislocation is a rare injury caused by high-energy trauma. Current treatment strategies include leg casts, internal fixation and external fixation. Among these, external fixators are the most commonly used as this method is believed to provide better stabilization. However, the biomechanical stability provided by these fixators has not been demonstrated. This biomechanical study compares two commonly used external fixators, i.e. Mitkovic and Delta. CT imaging data were used to reconstruct three-dimensional models of the tibia, fibula, talus, calcaneus, navicular, cuboid, three cuneiforms and five metatarsal bones....
Source: Medical Engineering and Physics - August 1, 2014 Category: Biomedical Engineering Authors: Muhammad Hanif Ramlee, Mohammed Rafiq Abdul Kadir, Malliga Raman Murali, Tunku Kamarul Tags: Technical note Source Type: research

3D printing of MRI compatible components: Why every MRI research group should have a low-budget 3D printer
To evaluate low budget 3D printing technology to create MRI compatible components. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - August 1, 2014 Category: Biomedical Engineering Authors: Karl-Heinz Herrmann, Clemens Gärtner, Daniel Güllmar, Martin Krämer, Jürgen R. Reichenbach Tags: Communication Source Type: research

Erratum to: PDMS-film coated on PCB for AC impedance sensing of biological cells.
PMID: 25078418 [PubMed - as supplied by publisher] (Source: Biomedical Microdevices)
Source: Biomedical Microdevices - July 31, 2014 Category: Biomedical Engineering Authors: Guo J, Li CM, Kang Y Tags: Biomed Microdevices Source Type: research

Development, manufacturing and application of double-sided flexible implantable microelectrodes.
Abstract Many neuroprosthetic applications require the use of very small, flexible multi-channel microelectrodes (e.g. polyimide-based film-like electrodes) to fit anatomical constraints. By arranging the electrode contacts on both sides of the polyimide film, selectivity can be further increased without increasing size. In this work, two approaches to create such double-sided electrodes are described and compared: sandwich electrodes prepared by precisely gluing two single-sided structures together, and monolithic electrodes created using a new double-sided photolithography process. Both methods were successfully ...
Source: Biomedical Microdevices - July 31, 2014 Category: Biomedical Engineering Authors: Poppendieck W, Sossalla A, Krob MO, Welsch C, Nguyen TA, Gong W, DiGiovanna J, Micera S, Merfeld DM, Hoffmann KP Tags: Biomed Microdevices Source Type: research

Predicting the holistic force-displacement relation of the periodontal ligament: in-vitro experiments and finite element analysis
Conclusions: Nondestructive measurements by micro-CT obtained the biomechanical behavior of the PDL. Using the hyperelastic characteristic as the constitutive model can properly predict the force-displacement relation of the PDL after loading. This study provided a feasible approach for measuring the biomechanical behavior of the PDL for further dental application. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - July 30, 2014 Category: Biomedical Engineering Authors: Chih-Han ChangYao-Ning LeiYi-Hung HoYu-Hsing SungTing-Sheng Lin Source Type: research

Zinc oxide quantum dots: a potential candidate to detain liver cancer cells.
Abstract The term cancer is used for diseases in which abnormal cells proliferate without control and are able to attack with other tissues. Over various types of cancers, liver cancer is the most hurtful disease, which affects the whole body system. The aim of the present study was to investigate the efficiency against cancer cells of HepG2 cells, with quantum dots of ZnO. The cytotoxic effects were analyzed with MTT assays in range of 1-100 μg/ml. The cells were exposed to ZnO-QDs and it exhibit significant reduction, which starts from concentration 5 μg/ml (4 %; p < 0.05). The assay was justified with ...
Source: Bioprocess and Biosystems Engineering - July 30, 2014 Category: Biomedical Engineering Authors: Ahmad J, Wahab R, Siddiqui MA, Musarrat J, Al-Khedhairy AA Tags: Bioprocess Biosyst Eng Source Type: research

Editorial Board
(Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 29, 2014 Category: Biomedical Engineering Source Type: research

Continuing the quest for better stroke therapies
(New Jersey Institute of Technology) Helping people recover from the debilitating effects of a stroke is an immensely complex challenge that requires deep knowledge of neurophysiology as well as effective therapy. Advancing such knowledge to improve therapeutic options and outcomes has been the primary focus of research by Sergei Adamovich, associate professor of biomedical engineering, since he joined the NJIT faculty more than a decade ago. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - July 29, 2014 Category: Biology Source Type: news

Shoulder motor performance assessment in the sagittal plane in children with hemiplegia during single joint pointing tasks
Conclusions: Results suggest the presence of a different control strategy for fast movements in particular during lowering phase. Results suggest that motor control is not able to optimize Jerk and Torque-change cost functions in the same way when controls the two arms, suggesting that children with hemiplegia do not actively control MA lowering fast movements, in order to take advantage of the passive inertial body properties, rather than to attempt its optimal control. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - July 29, 2014 Category: Biomedical Engineering Authors: Domenico FormicaMaurizio PetrarcaStefano RossiLoredana ZolloEugenio GuglielmelliPaolo Cappa Source Type: research

An Assistive Device for Congenital Central Hypoventilation Syndrome Outpatients During Sleep.
Abstract Congenital Central Hypoventilation Syndrome is a genetic disease characterized by alveolar hypoventilation and autonomic dysregulation. Patients have hypoventilations, especially during sleep, conditioning hypercapnia which can lead to neurological damage and death. They therefore need mechanical ventilators, that provide sufficient gas exchange, and pulse-oximeters that monitor oxy-hemoglobin blood concentration. Due to the restrictions regarding domiciliary assistive devices, the presence of a caregiver is required all night long. Currently, the only alarm systems available are the ones integrated in the...
Source: Annals of Biomedical Engineering - July 29, 2014 Category: Biomedical Engineering Authors: Biffi E, Piazza C, Cavalleri M, Taddeo P, Carcano A, Morandi F, Reni G Tags: Ann Biomed Eng Source Type: research

Markerless motion capture can provide reliable 3D gait kinematics in the sagittal and frontal plane
Estimating 3D joint rotations in the lower extremities accurately and reliably remains unresolved in markerless motion capture, despite extensive studies in the past decades. The main problems have been ascribed to the limited accuracy of the 3D reconstructions. Accordingly, the purpose of the present study was to develop a new approach based on highly detailed 3D reconstructions in combination with a translational and rotational unconstrained articulated model. The highly detailed 3D reconstructions were synthesized from an eight camera setup using a stereo vision approach. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 29, 2014 Category: Biomedical Engineering Authors: Martin Sandau, Henrik Koblauch, Thomas B. Moeslund, Henrik Aanæs, Tine Alkjær, Erik B. Simonsen Source Type: research

A new method to measure higher visual functions in an immersive environment
Conclusions: A new method to measure higher visual functions in an immersive environment was presented. The study focused on the usability of the developed battery rather than the performance at the visual tasks. A battery of five subtasks to study the perception of size, shape, orientation, speed and motion direction was developed. The test setup is now ready to be tested in neurological patients. (Source: BioMedical Engineering OnLine)
Source: BioMedical Engineering OnLine - July 28, 2014 Category: Biomedical Engineering Authors: Giuseppe ZitoRené MüriUrs MosimannThomas NyffelerTobias Nef Source Type: research

Robust heart sound detection in respiratory sound using LRT with maximum a based online parameter adaptation
This paper investigates the utility of a likelihood ratio test (LRT) combined with an efficient adaptation procedure for the purpose of detecting the heart sound (HS) with lung sound and the lung sound only (non-HS) segments in a respiratory signal. The proposed detection method has four main stages: feature extraction, training of the models, detection, and adaptation of the model parameter. In the first stage, the logarithmic energy features are extracted for each frame of respiratory sound. In the second stage, the probabilistic models for HS and non-HS segments are constructed by training Gaussian mixture models (GMMs)...
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Hamed Shamsi, I. Yucel Ozbek Source Type: research

dermal and epidermal cellular response to titanium alloy implants fabricated with electron beam melting
Most prosthetic devices for limb amputees attach to the limb stump via a socket, however socket prostheses can create abnormal pressure and friction on soft tissues, particularly for lower limb amputations, resulting in tissue injury and other complications [1]. An emerging alternative is the transdermal osseointegrated prosthesis (TOP) [2]. A TOP is an implanted device that is affixed directly to bone of the limb stump and passes through the skin to provide a secure attachment for an external prosthesis. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Jessica Collins Springer, Ola L.A. Harrysson, Denis J. Marcellin-Little, Susan H. Bernacki Source Type: research

Does surface roughness influence the primary stability of acetabular cups? A numerical and experimental biomechanical evaluation
Most acetabular cups implanted today are press-fit impacted cementless. Anchorage begins with the primary stability given by insertion of a slightly oversized cup. This primary stability is key to obtaining bone ingrowth and secondary stability. We tested the hypothesis that primary stability of the cup is related to surface roughness of the implant, using both an experimental and a numerical models to analyze how three levels of surface roughness (micro, macro and combined) affect the primary stability of the cup. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Sophie Le Cann, Alexandre Galland, Benoît Rosa, Thomas Le Corroller, Martine Pithioux, Jean-Noël Argenson, Patrick Chabrand, Sébastien Parratte Source Type: research

Effect of fixation on neovascularization during bone healing
The complex process of bone repair is closely related to the local mechanical and biological environments, the combined influence of which can lead to different results: successful healing, delayed healing, or even non-union [1–4]. However, the knowledge about the interaction among mechanical environment, biological environment and bone healing, is still quite limited. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Feng Zhao, Zhilun Zhou, Yang Yan, Zhen Yuan, Guanzhong Yang, Hao Yu, Hao Su, Tao Zhang, Yubo Fan Source Type: research

Design and validation of a cadaveric knee joint loading device compatible with magnetic resonance imaging and computed tomography
Design and validation of a magnetic resonance and computed tomography compatible device capable of applying physiologically relevant muscle forces to cadaveric knee joints with high levels of repeatability and reproducibility. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Larry Chen, Karen Gordon, Mark Hurtig Source Type: research

Robust heart sound detection in respiratory sound using LRT with maximum a based online parameter adaptation
This paper investigates the utility of a likelihood ratio test (LRT) combined with an efficient adaptation procedure for the purpose of detecting the heart sound (HS) with lung sound and the lung sound only (non-HS) segments in a respiratory signal. The proposed detection method has four main stages: feature extraction, training of the models, detection, and adaptation of the model parameter. In the first stage, the logarithmic energy features are extracted for each frame of respiratory sound. In the second stage, the probabilistic models for HS and non-HS segments are constructed by training Gaussian mixture models (GMMs)...
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Hamed Shamsi, I. Yucel Ozbek Source Type: research

dermal and epidermal cellular response to titanium alloy implants fabricated with electron beam melting
Most prosthetic devices for limb amputees attach to the limb stump via a socket, however socket prostheses can create abnormal pressure and friction on soft tissues, particularly for lower limb amputations, resulting in tissue injury and other complications [1]. An emerging alternative is the transdermal osseointegrated prosthesis (TOP) [2]. A TOP is an implanted device that is affixed directly to bone of the limb stump and passes through the skin to provide a secure attachment for an external prosthesis. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Jessica Collins Springer, Ola L.A. Harrysson, Denis J. Marcellin-Little, Susan H. Bernacki Tags: Technical note Source Type: research

Effect of fixation on neovascularization during bone healing
The complex process of bone repair is closely related to the local mechanical and biological environments, the combined influence of which can lead to different results: successful healing, delayed healing, or even non-union [1–4]. However, the knowledge about the interaction among mechanical environment, biological environment and bone healing, is still quite limited. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Feng Zhao, Zhilun Zhou, Yang Yan, Zhen Yuan, Guanzhong Yang, Hao Yu, Hao Su, Tao Zhang, Yubo Fan Source Type: research

Design and validation of a cadaveric knee joint loading device compatible with magnetic resonance imaging and computed tomography
Design and validation of a magnetic resonance and computed tomography compatible device capable of applying physiologically relevant muscle forces to cadaveric knee joints with high levels of repeatability and reproducibility. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - July 28, 2014 Category: Biomedical Engineering Authors: Larry Chen, Karen Gordon, Mark Hurtig Tags: Technical note Source Type: research

Application of Time-Delay Absorber to Suppress Vibration of a Dynamical System to Tuned Excitation.
Abstract In this work, we present a comprehensive investigation of the time delay absorber effects on the control of a dynamical system represented by a cantilever beam subjected to tuned excitation forces. Cantilever beam is one of the most widely used system in too many engineering applications, such as mechanical and civil engineering. The main aim of this work is to control the vibration of the beam at simultaneous internal and combined resonance condition, as it is the worst resonance case. Control is conducted via time delay absorber to suppress chaotic vibrations. Time delays often appear in many control sys...
Source: Journal of Vibration and Acoustics - July 27, 2014 Category: Biomedical Engineering Authors: El-Ganaini WA, El-Gohary HA Tags: J Vib Acoust Source Type: research

Baseline drift removal and denoising of MCG data using EEMD: Role of noise amplitude and the thresholding effect
We adopt the Ensemble Empirical Mode Decomposition (EEMD) method, with an appropriate thresholding on the Intrinsic Mode Functions (IMFs), to denoise the magnetocardiography (MCG) signal. To this end, we discuss the two associated problems that relate to: (i) the amplitude of noise added to the observed signal in the EEMD method with a view to prevent mode mixing and (ii) the effect of direct thresholding that causes discontinuities in the reconstructed denoised signal. We then denoise the MCG signals, having various signal-to-noise ratios, by using this method and compare the results with those obtained by the standard wa...
Source: Medical Engineering and Physics - July 26, 2014 Category: Biomedical Engineering Authors: N. Mariyappa, S. Sengottuvel, C. Parasakthi, K. Gireesan, M.P. Janawadkar, T.S. Radhakrishnan, C.S. Sundar Source Type: research