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Gavrishchaka Valeriy V Department of Physics, West Virginia University, Morgantown, WV, 26506, USA, - - 2015
Previously, we have proposed to use complementary complexity measures discovered by boosting-like ensemble learning for the enhancement of quantitative indicators dealing with necessarily short physiological time series. We have confirmed robustness of such multi-complexity measures for heart rate variability analysis with the emphasis on detection of emerging and intermittent cardiac ...
Chattopadhyay Ishanu - - 2014
From automatic speech recognition to discovering unusual stars, underlying almost all automated discovery tasks is the ability to compare and contrast data streams with each other, to identify connections and spot outliers. Despite the prevalence of data, however, automated methods are not keeping pace. A key bottleneck is that most ...
Hussan Jagir R JR Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand. - - 2014
ICMA, a software framework to create 3D finite element models of the left ventricle from Cardiac Ultrasound or MRI data, has been made available as an open-source code. The framework is hardware vendor independent and uses speckle tracking (endocardial border detection) on Ultrasound (MRI) imaging data in the form of ...
Labrosse Michel R MR Department of Mechanical Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, K1N 6N5 Ontario, Canada. Electronic address: - - 2014
In the past decades, developments in transesophageal echocardiography (TEE) have opened new horizons in reconstructive surgery of the aortic valve (AV), whereby corrections are made to normalize the geometry and function of the valve, and effectively treat leaks. To the best of our knowledge, we propose the first integrated framework ...
Velikina Julia V JV Deparment of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, - - 2014
To accelerate dynamic MR imaging through development of a novel image reconstruction technique using low-rank temporal signal models preestimated from training data. We introduce the model consistency condition (MOCCO) technique, which utilizes temporal models to regularize reconstruction without constraining the solution to be low-rank, as is performed in related techniques. ...
Suehiro Koichi K Department of Anesthesiology, Osaka City University Graduate School of Medicine, Osaka City, Osaka, Japan. Electronic address: - - 2014
The aims of this study were to compare cardiac output (CO) measured by the new fourth-generation FloTrac(TM)/Vigileo(TM) system (Version 4.00) (COFVS) with that measured by a pulmonary artery catheter (COREF), and to investigate the ability of COFVS to track CO changes induced by increased peripheral resistance. Prospective study. University Hospital. ...
Jiang Chen C State Key Laboratory of Advanced Technology of Design and Manufacturing for Vehicle Body, Hunan University, 410082, People's Republic of - - 2014
The smoothed finite element method (S-FEM) is firstly extended to explore the behavior of 3D anisotropic large deformation of rabbit ventricles during the passive filling process in diastole. Because of the incompressibility of myocardium, a special method called selective face-based/node-based S-FEM using 4-node tetrahedral elements (FS/NS-FEM-TET4) is adopted in order ...
Mäntynen Ville V Department of Biomedical Engineering and Computational Science, Aalto University, Espoo, PO Box 12200, FI-00076, AALTO, Finland. BioMag Laboratory, HUS Medical Imaging Center, Helsinki, PO Box 340, FI-00029, HUS, - - 2014
Solving the inverse problem of electrocardiography (ECG) and magnetocardiography (MCG) is often referred to as cardiac source imaging. Spatial properties of ECG and MCG as imaging systems are, however, not well known. In this modelling study, we investigate the sensitivity and point-spread function (PSF) of ECG, MCG, and combined ECG+MCG ...
Lewalle Alexandre A Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, Kings College London, Kings Health Partners, St. Thomas Hospital, London, SE1 7EH, United - - 2014
The Na(+)/K(+) ATPase (NKA) plays a critical role in maintaining ionic homeostasis and dynamic function in cardiac myocytes, within both the in-vivo cell and in-silico models. Physiological conditions differ significantly between mammalian species. However, most existing formulations of NKA used to simulate cardiac function in computational models are derived from ...
Noack Thilo T Department of Cardiac Surgery, Heart Center Leipzig University, Leipzig, Germany - - 2014
The complexity of the mitral valve (MV) anatomy and function is not yet fully understood. Assessing the dynamic movement and interaction of MV components to define MV physiology during the complete cardiac cycle remains a challenge. We herein describe a novel semi-automated 4D MV model. The model applies quantitative analysis ...
Alaa Nour Eddine - - 2014
Cardiac arrhythmias are becoming one of the major health care problem in the world, causing numerous serious disease conditions including stroke and sudden cardiac death. Furthermore, cardiac arrhythmias are intimately related to the signaling ability of cardiac cells, and are caused by signaling defects. Consequently, modeling the electrical activity of ...
Vanlandingham Sean C SC Department of Emergency Medicine, University of Alabama School of Medicine, 619 19th St South, OHB 251, Birmingham, AL 35249, United - - 2014
Therapeutic hypothermia (TH) is an important treatment for post-cardiac arrest syndrome. Despite its widespread practice, only limited data describe the thermodynamic aspects of heat transfer during TH. This paper reviews the principles of human body heat balance and provides a conceptual model for characterizing heat exchange during TH. The model ...
Zhao Qi - - 2014
Bivalirudin is a direct thrombin inhibitor used in the cardiac intensive care unit when heparin is contraindicated due to heparin-induced thrombocytopenia. Since it is not a commonly used drug, clinical experience with its dosing is sparse. In earlier work ([1]) we developed a dynamic system model that accurately predicts the ...
Barbini Paolo - - 2014
Length-of-stay prediction for cardiac surgery patients is a key point for medical management issues, such as optimization of resources in intensive care units and operating room scheduling. Scoring systems are a very attractive family of predictive models, but their retraining and updating are generally critical. The present approach to designing ...
Castro Daniel - - 2014
Continuous follow-up of heart condition through long-term electrocardiogram monitoring is an invaluable tool for diagnosing some cardiac arrhythmias. In such context, providing tools for fast locating alterations of normal conduction patterns is mandatory and still remains an open issue. This work presents a real-time method for adaptive clustering QRS complexes ...
Moreira Gomes Johnny - - 2014
This paper compares different numerical methods for the solution of myocyte models of cardiac electrophysiology. In particular, it presents how the technique called Uniformization Method substantially increases the stability of simple first order methods such as Euler Explicit Method and Rush Larsen Method, for the solution of modern electrophysiology models ...
Sinha Ashish C AC Department of Anaesthesia, Drexel University College of Medicine, Philadelphia, PA, - - 2014
Aims and Objectives: Cardiac output (CO) measurement is essential for many therapeutic decisions in anesthesia and critical care. Most available non-invasive CO measuring methods have an invasive component. We investigate "pulse wave transit time" (estimated continuous cardiac output [esCCO]) a method of CO measurement that has no invasive component to ...
Wang Zhu Z Department of Research, Connecticut Children's Medical Center, Department of Pediatrics, University of Connecticut School of Medicine, Hartford, CT, - - 2014
This paper proposes a new statistical approach for predicting postoperative morbidity such as intensive care unit length of stay and number of complications after cardiac surgery in children. In a recent multi-center study sponsored by the National Institutes of Health, 311 children undergoing cardiac surgery were enrolled. Morbidity data are ...
Khosrow-Khavar Farzad - - 2014
Seismocardiogram (SCG) is the low frequency vibrations signal recorded from the chest using accelerometers. Peaks on dorsoventral and sternal SCG correspond to specific cardiac events. Prior research work has shown the potential of extracting such peaks for various types of monitoring and diagnosis applications. However, annotation of these peaks is ...
Park Juyoung J Department of Computer Science & Engineering, Hanyang University, Ansan 426-791, Republic of - - 2014
The computer-aided interpretation of electrocardiogram (ECG) signals provides a non-invasive and inexpensive technique for analyzing heart activity under various cardiac conditions. Further, the proliferation of smartphones and wireless networks makes it possible to perform continuous Holter monitoring. However, although considerable attention has been paid to automated detection and classification of ...
Raible Florian F Max F. Perutz Laboratories and Research Platform 'Marine Rhythms of Life', University of Vienna, Dr. Bohr-Gasse 9/4, 1030 Vienna, Austria. Electronic address: - - 2014
A quick guide into the new model annelid Platynereis.
Holmes Millicent M School of Psychology, Deakin University, 221 Burwood Highway, Burwood, VIC, 3125, - - 2014
The present study tests several competing, explanatory models-dual pathways, escape from awareness, and objectification theory-for the established link between body dissatisfaction and binge eating. 408 women aged between 18 and 40 years completed a survey designed to assess contributions of proposed mediators (dietary restraint and negative affect from the dual pathway ...
Campodonico Miguel A MA Centre for Biochemical Engineering and Biotechnology, University of Chile, Beauchef 850, Santiago, Chile; Dept. of Bioengineering, University of California San Diego, 9500 Gilman Drive, Mail Code 0412, La Jolla, CA, 92093, - - 2014
The production of 75% of the current drug molecules and 35% of all chemicals could be achieved through bioprocessing (Arundel and Sawaya, 2009). To accelerate the transition from a petroleum-based chemical industry to a sustainable bio-based industry, systems metabolic engineering has emerged to computationally design metabolic pathways for chemical production. ...
Tollefsen T T European Commission, DG Joint Research Centre, Institute for Transuranium Elements, Via E Fermi 2749, Ispra I-21027, Italy - - 2014
In 2006, the Joint Research Centre of the European Commission launched a project to map radon at the European level, as part of a planned European Atlas of Natural Radiation. It started with a map of indoor radon concentrations. As of May 2014, this map includes data from 24 countries, ...
Dakanalis Antonios A Department of Brain and Behavioral Sciences, University of Pavia, P.za Botta 11, 27100, Pavia, Italy. Electronic address: - - 2014
Stice's (1994, 2001) dual pathway model proposed a mediational sequence that links body dissatisfaction to lack of control over eating through dieting and negative affect. van Strien and colleagues (2005) extended the negative affect pathway of the original dual pathway model by adding two additional intervening variables: interoceptive deficits and ...
Li Pu P Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, - - 2014
In this paper, a Monte Carlo simulation based two-stage adaptive resonance theory mapping (MC-TSAM) model was developed to classify a given site into distinguished zones representing different levels of offshore Oil Spill Vulnerability Index (OSVI). It consisted of an adaptive resonance theory (ART) module, an ART Mapping module, and a ...
Liu Renzhi R State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, Haidian District, Beijing 100875, China. Electronic address: - - 2014
Land-use suitability analyses are of considerable use in the planning of mega-cities. An Urban Development Land-use Suitability Mapping (UDLSM) approach has been constructed, based on opportunity and constraint criteria. Two Multi-criteria Evaluation (MCE) methods, the Ideal Point Method (IPM) and Ordered Weighted Averaging (OWA), were used to generate the opportunity ...
Goldman Alyssa W AW Concept Systems, Inc., 136 East State Street, Ithaca, NY 14850, USA. Electronic address: - - 2014
Group concept mapping is a mixed-methods approach that helps a group visually represent its ideas on a topic of interest through a series of related maps. The maps and additional graphics are useful for planning, evaluation and theory development. Group concept maps are typically described, interpreted and utilized through points, ...
Peng Xi X Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology of Chinese Academy of Sciences, Shenzhen, Guangdong, China; Beijing Center for Mathematics and Information Interdisciplinary Sciences, Beijing, China; Shenzhen Key Laboratory for MRI, Shenzhen, Guangdong, - - 2014
T2 mapping is a powerful noninvasive technique providing quantitative biological information of the inherent tissue properties. However, its clinical usage is limited due to the relative long scanning time. This paper proposed a novel model-based method to address this problem. Typically, we directly estimated the relaxation values from undersampled k-space ...
Du Junli J College of Sciences, Northwest A&F University, Yangling, 712100, P. R. China. - - 2014
The dynamic impact approach (DIA) represents an alternative to overrepresentation analysis (ORA) for functional analysis of time-course experiments or those involving multiple treatments. The DIA can be used to estimate the biological impact of the differentially expressed genes (DEGs) associated with particular biological functions, for example, as represented by the ...
Zhao Jinying J Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, - - 2014
Although pathway analysis methods have been developed and successfully applied to association studies of common variants, the statistical methods for pathway-based association analysis of rare variants have not been well developed. Many investigators observed highly inflated false-positive rates and low power in pathway-based tests of association of rare variants. The ...
Zheng Yu Y 1 Department of Mathematics, National University of Singapore , Singapore - - 2014
Abstract In the tree reconciliation approach for species tree inference, a tree that has the minimum reconciliation score for given gene trees is taken as an estimate of the species tree. The scoring models used in existing tree reconciliation methods include the duplication, mutation, and deep coalescence costs. Since existing ...
Cox B B Radiology, Institute for Medical Science and Technology, University of Dundee, Dundee, - - 2014
The benefits of learning on simulator have long been established across different areas of practice including medical industry. In particular recent technological advances have produced either flow models or simulators on which practitioners can learn new techniques evaluate new devices or improve their skills outside of direct patient care. None ...
Duquette Philippe M PM McGill University; Department of Anatomy and Cell Biology; Montreal, QC - - 2014
In the last decade, several mouse models for RhoA, Rac1, and Cdc42 have emerged and have contributed a great deal to understanding the precise functions of Rho GTPases at early stages of development. This review summarizes our current knowledge of various mouse models of tissue-specific ablation of Cdc42, Rac1, and ...
Schwartz-Chassidim Hadas H Department of Industrial Engineering and Management, Ben-Gurion University, of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel. Electronic address: - - 2014
Maps should be designed so that users can comprehend and use the information. Display decisions, such as choosing the scale at which an area is shown, depend on properties of the displayed information such as the perceived density (PD) of the information. Taking a psychophysical approach we suggest that the ...
Cao Mengfei M Department of Computer Science, Tufts University, Medford, MA 02155, USA and Department of Computer Science, University of Minnesota, Minneapolis, MN 55455, - - 2014
It has long been hypothesized that incorporating models of network noise as well as edge directions and known pathway information into the representation of protein-protein interaction (PPI) networks might improve their utility for functional inference. However, a simple way to do this has not been obvious. We find that diffusion ...
Ki Seo Jin SJ Department of Civil and Environmental Engineering and Water Resources Research Center, University of Hawaii at Manoa, Honolulu, HI 96822, - - 2014
Determining optimal locations for best management practices (BMPs), including their field considerations and limitations, plays an important role for effective stormwater management. However, these issues have been often overlooked in modeling studies that focused on downstream water quality benefits. This study illustrates the methodology of locating infiltration trenches at suitable ...
Alcaine Alejandro - - 2014
Electroanatomical mapping (EAM) systems are commonly used in clinical practice for guiding catheter ablation treatments of common arrhythmias. In focal tachycardias, the ablation target is defined by locating the earliest activation area determined by the joint analysis of electrogram (EGM) signals at different sites. However, this is currently a manual ...
Zhao Feng - - 2014
Parallel excitation requires fast and accurate B1 map estimation. Bloch-Siegert (BS) B1 mapping is very fast and accurate over a large dynamic range. When applied to multi-coil systems, however, this phase-based method may produce low SNR estimates in low magnitude regions due to localized excitation patterns of parallel excitation systems. ...
Crott Ralph R 1IRSS, Université Catholique de Louvain, Clos Chapelle aux Champs 30 bte 30.15, 1200, Brussels, - - 2014
Aim: Over the last years several mapping or cross-walking algorithms for deriving utilities from QLQ-C30 scores have been published. However their external predictive accuracy has not yet been systematically compared. Methods: We tested the external validity of previously published mapping algorithms to transform the European Organization for Research and Treatment ...
Niemeyer David J DJ Carolinas Medical Center, Charlotte, NC, - - 2014
Introduction. Local ablative therapies, including microwave ablation (MWA), are common treatment modalities for in situ tumor destruction. Currently, 2.45-GHz ablation systems are gaining prominence because of the shorter application times required. The aims of this study were to determine optimal power and time to ablation volume (AbV) ratios for a ...
Hadjicharalambous Myrianthi M Department of Biomedical Engineering, King's College London, St Thomas' Hospital, London SE1 7EH, - - 2014
The Lagrange Multiplier (LM) and penalty methods are commonly used to enforce incompressibility and compressibility in models of cardiac mechanics. In this paper we show how both formulations may be equivalently thought of as a weakly penalized system derived from the statically condensed Perturbed Lagrangian formulation, which may be directly ...
Isachenko Artem A MSU, White Sea Biological Station, Russian Federation. Electronic address: - - 2014
During 2009-2012 stocks of the bivalve Arctica islandica (Linnaeus, 1767) (Ocean quahog) in Kandalaksha Bay (the White Sea) has been assessed using a side-scan sonar, grab sampling and underwater photo imaging. Structurally uniform localities were highlighted on the basis of side-scan signal. Each type of a signal reflects combination of ...
Spinczyk Dominik D Faculty of Biomedical Engineering, Silesian University of Technology, Zabrze, - - 2014
Nowadays the best treatment of the primary and secondary hepatic tumor is surgical resection, but only 5-15% of all patient with hepatocellular carcinoma and 20-25% of all patients with liver metastases are indicated for resection. In these cases some kind of ablation and other technique could be used. To present ...
Bueno Justin J Department of Chemistry, University at Albany, SUNY, 1400 Washington Avenue, Albany, NY, 12222, - - 2014
A novel approach utilizing automated Raman microspectroscopic mapping for gunshot residue (GSR) detection was investigated. A well-established technique for GSR recovery (tape lifting) was utilized for GSR particle collection. Uncontaminated samples of the substrate (tape), organic GSR (OGSR), and inorganic GSR (IGSR) particles were characterized to generate three respective Raman ...
Parker Christopher J CJ a Loughborough Design School , Loughborough University , Loughborough , - - 2014
This paper investigates the influence of presenting volunteered and professionally created geographic information to 101 wheelchair users through an interactive website that included information collected by wheelchair-using volunteers. The aim of this experiment was to understand the influence that (1) knowing a map-based website contains volunteered information and (2) actually ...
Karau Eva C EC USDA Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory, 5775 Hwy 10 W, Missoula, MT, 59808, USA, - - 2014
Both satellite imagery and spatial fire effects models are valuable tools for generating burn severity maps that are useful to fire scientists and resource managers. The purpose of this study was to test a new mapping approach that integrates imagery and modeling to create more accurate burn severity maps. We ...
Zhao Bo - - 2014
MR parameter mapping (e.g., T1 mapping, T2 mapping, T 2 mapping) is a valuable tool for tissue characterization. However, its practical utility has been limited due to long data acquisition times. This paper addresses this problem with a new model-based parameter mapping method. The proposed method utilizes a formulation that ...
Ben-Hamo Rotem R The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, - - 2014
At the core of transcriptome analyses of cancer is a challenge to detect molecular differences affiliated with disease phenotypes. This approach has led to remarkable progress in identifying molecular signatures and in stratifying patients into clinical groups. Yet, despite this progress, many of the identified signatures are not robust enough ...
Kladwang Wipapat W Department of Biochemistry, Stanford University , Stanford, California 94305, United - - 2014
Chemical mapping experiments offer powerful information about RNA structure but currently involve ad hoc assumptions in data processing. We show that simple dilutions, referencing standards (GAGUA hairpins), and HiTRACE/MAPseeker analysis allow rigorous overmodification correction, background subtraction, and normalization for electrophoretic data and a ligation bias correction needed for accurate deep ...
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