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https://www.readbyqxmd.com/read/28328281/educational-role-for-an-advanced-suturing-task-in-the-pediatric-laparoscopic-surgery-simulator
#1
Maeve O'Neill Trudeau, Brian Carrillo, Ahmed Nasr, Justin T Gerstle, Georges Azzie
BACKGROUND: Laparoscopic models are recognized as important training tools. Lower fidelity systems are used mainly for simpler tasks; an advanced suturing task may allow for additional training of experts. The purpose of this study was to explore the educational role of an advanced suturing task using motion analysis and establish the task's construct validity. METHODS: The pediatric laparoscopic surgery (PLS) simulator was customized with motion-tracking hardware and software...
March 22, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28327144/computational-medical-imaging-and-hemodynamics-framework-for-functional-analysis-and-assessment-of-cardiovascular-structures
#2
REVIEW
Kelvin K L Wong, Defeng Wang, Jacky K L Ko, Jagannath Mazumdar, Thu-Thao Le, Dhanjoo Ghista
Cardiac dysfunction constitutes common cardiovascular health issues in the society, and has been an investigation topic of strong focus by researchers in the medical imaging community. Diagnostic modalities based on echocardiography, magnetic resonance imaging, chest radiography and computed tomography are common techniques that provide cardiovascular structural information to diagnose heart defects. However, functional information of cardiovascular flow, which can in fact be used to support the diagnosis of many cardiovascular diseases with a myriad of hemodynamics performance indicators, remains unexplored to its full potential...
March 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28325208/a-systematic-review-of-team-training-in-health-care-ten-questions
#3
Shannon L Marlow, Ashley M Hughes, Shirley C Sonesh, Megan E Gregory, Christina N Lacerenza, Lauren E Benishek, Amanda L Woods, Claudia Hernandez, Eduardo Salas
BACKGROUND: As a result of the recent proliferation of health care team training (HTT), there was a need to update previous systematic reviews examining the underlying structure driving team training initiatives. METHODS: This investigation was guided by 10 research questions. A literature search identified 197 empirical samples detailing the evaluation of team training programs within the health care context; 1,764 measures of HTT effectiveness were identified within these samples...
April 2017: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28323724/ebus-stat-subscore-analysis-to-predict-the-efficacy-and-assess-the-validity-of-virtual-reality-simulation-for-ebus-tbna-training-among-experienced-bronchoscopists
#4
Simone Scarlata, Patrizio Palermo, Piero Candoli, Ariela Tofani, Tommasangelo Petitti, Lorenzo Corbetta
BACKGROUND: Linear endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA) represents a pivotal innovation in interventional pulmonology; determining the best approach to guarantee systematic and efficient training is expected to become a main issue in the forthcoming years. Virtual reality simulators have been proposed as potential EBUS-TBNA training instruments, to avoid unskilled beginners practicing directly in real-life settings. A validated and perfected simulation program could be used before allowing beginners to practice on patients...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28323444/evaluating-driver-drowsiness-countermeasures
#5
John G Gaspar, Timothy L Brown, Chris W Schwarz, John D Lee, Julie Kang, James S Higgins
Objective Driver drowsiness contributes to a substantial number of fatal and non-fatal crashes, with recent estimates attributing up to 21% of fatal crashes to drowsiness. This paper describes recent NHTSA research on in-vehicle drowsiness countermeasures. Recent advances in technology and state detection algorithms have shown success in detecting drowsiness using a variety of data sources, including camera-based eye tracking, steering wheel position, yaw rate, and vehicle lane position. However, detection is just the first step in reducing drowsy driving crashes...
March 21, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28322631/priming-patient-safety-through-nursing-handoff-communication
#6
Patricia S Groves, Jacinda L Bunch, Ellen Cram, Amany Farag, Kirstin Manges, Yelena Perkhounkova, Jill Scott-Cawiezell
Understanding how safety culture mechanisms affect nursing safety-oriented behavior and thus patient outcomes is critical to developing hospital safety programs. Safety priming refers to communicating safety values intended to activate patient safety goals. Safety priming through nursing handoff communication was tested as a means by which cultural safety values may affect nursing practice. The mixed-methods pilot study setting was an academic medical center's high-fidelity simulation lab. Twenty nurses were randomized into intervention and control groups...
October 1, 2016: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28320657/regularized-dual-averaging-image-reconstruction-for-full-wave-ultrasound-computed-tomography
#7
Thomas Matthews, Kun Wang, Cuiping Li, Neb Duric, Mark Anastasio
Ultrasound computed tomography (USCT) holds great promise for breast cancer screening. Waveform inversionbased image reconstruction methods account for higher-order diffraction effects and can produce high-resolution USCT images, but are computationally demanding. Recently, a source encoding technique was combined with stochastic gradient descent to greatly reduce image reconstruction times. However, this method bundles the stochastic data fidelity term with the deterministic regularization term. This limitation can be overcome by replacing stochastic gradient descent (SGD) with a structured optimization method, such as the regularized dual averaging (RDA) method, that exploits knowledge of the composition of the cost function...
March 14, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28314185/nurse-students-learning-acute-care-by-simulation-focus-on-observation-and-debriefing
#8
Anna Abelsson, Birgitta Bisholt
INTRODUCTION: Simulation creates the possibility to experience acute situations during nursing education which cannot easily be achieved in clinical settings. AIM: To describe how nursing students learn acute care of patients through simulation exercises, based on observation and debriefing. DESIGN: The study was designed as an observational study inspired by an ethnographic approach. METHOD: Data was collected through observations and interviews...
March 9, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28293137/nonlinear-information-fusion-algorithms-for-data-efficient-multi-fidelity-modelling
#9
P Perdikaris, M Raissi, A Damianou, N D Lawrence, G E Karniadakis
Multi-fidelity modelling enables accurate inference of quantities of interest by synergistically combining realizations of low-cost/low-fidelity models with a small set of high-fidelity observations. This is particularly effective when the low- and high-fidelity models exhibit strong correlations, and can lead to significant computational gains over approaches that solely rely on high-fidelity models. However, in many cases of practical interest, low-fidelity models can only be well correlated to their high-fidelity counterparts for a specific range of input parameters, and potentially return wrong trends and erroneous predictions if probed outside of their validity regime...
February 2017: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28290956/multidisciplinary-in-situ-simulation-based-training-as-a-postpartum-hemorrhage-quality-improvement-project
#10
Monica A Lutgendorf, Carmen Spalding, Elizabeth Drake, Dennis Spence, Jason O Heaton, Kristina V Morocco
BACKGROUND: Postpartum hemorrhage is a common obstetric emergency affecting 3 to 5% of deliveries, with significant maternal morbidity and mortality. Effective management of postpartum hemorrhage requires strong teamwork and collaboration. We completed a multidisciplinary in situ postpartum hemorrhage simulation training exercise with structured team debriefing to evaluate hospital protocols, team performance, operational readiness, and real-time identification of system improvements...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28290239/an-innovative-design-for-cardiopulmonary-resuscitation-manikins-based-on-a-human-like-thorax-and-embedded-flow-sensors
#11
Mark Thielen, Rohan Joshi, Frank Delbressine, Sidarto Bambang Oetomo, Loe Feijs
Cardiopulmonary resuscitation manikins are used for training personnel in performing cardiopulmonary resuscitation. State-of-the-art cardiopulmonary resuscitation manikins are still anatomically and physiologically low-fidelity designs. The aim of this research was to design a manikin that offers high anatomical and physiological fidelity and has a cardiac and respiratory system along with integrated flow sensors to monitor cardiac output and air displacement in response to cardiopulmonary resuscitation. This manikin was designed in accordance with anatomical dimensions using a polyoxymethylene rib cage connected to a vertebral column from an anatomical female model...
March 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28284799/towards-a-comprehensive-framework-for-movement-and-distortion-correction-of-diffusion-mr-images-within-volume-movement
#12
Jesper L R Andersson, Mark S Graham, Ivana Drobnjak, Hui Zhang, Nicola Filippini, Matteo Bastiani
Most motion correction methods work by aligning a set of volumes together, or to a volume that represents a reference location. These are based on an implicit assumption that the subject remains motionless during the several seconds it takes to acquire all slices in a volume, and that any movement occurs in the brief moment between acquiring the last slice of one volume and the first slice of the next. This is clearly an approximation that can be more or less good depending on how long it takes to acquire one volume and in how rapidly the subject moves...
March 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28283290/examining-global-electricity-supply-vulnerability-to-climate-change-using-a-high-fidelity-hydropower-dam-model
#13
Sean W D Turner, Jia Yi Ng, Stefano Galelli
An important and plausible impact of a changing global climate is altered power generation from hydroelectric dams. Here we project 21st century global hydropower production by forcing a coupled, global hydrological and dam model with three General Circulation Model (GCM) projections run under two emissions scenarios. Dams are simulated using a detailed model that accounts for plant specifications, storage dynamics, reservoir bathymetry and realistic, optimized operations. We show that the inclusion of these features can have a non-trivial effect on the simulated response of hydropower production to changes in climate...
March 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28274986/use-of-simulation-training-to-prepare-pharmacy-residents-for-medical-emergencies
#14
Melissa L Thompson Bastin, Aaron M Cook, Alexander H Flannery
PURPOSE: The use of high-fidelity simulation training for preparing pharmacy residents for various high-stress and high-impact medical emergencies and the impact of this training on pharmacy residents' perception of preparedness are described. SUMMARY: During the 2015-16 residency year at the University of Kentucky Medical Center, simulation training, in addition to lecture-based orientation training, was chosen as a method to reinforce skills and knowledge learned throughout the orientation, before residents began working on-call shifts...
March 15, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28272294/use-of-high-fidelity-simulation-to-enhance-interdisciplinary-collaboration-and-reduce-patient-falls
#15
April A Bursiek, Matthew R Hopkins, Daniel M Breitkopf, Pamela L Grubbs, Mary Ellen Joswiak, Janee M Klipfel, Kristine M Johnson
OBJECTIVES: This pilot study aimed to determine the effect of nurse/physician interdisciplinary team training on patient falls. Specifically, we evaluated team training in a simulation center as a method for targeting and minimizing breakdowns in perceptions of respect, collaboration, communication, and role misunderstanding behaviors between care disciplines. METHODS: Registered nurses (RNs) were randomly assigned to participate. Residents were divided into groups and assigned based on their availability and clinical responsibility...
March 7, 2017: Journal of Patient Safety
https://www.readbyqxmd.com/read/28268898/a-large-scale-detailed-neuronal-model-of-electrical-stimulation-of-the-dentate-gyrus-and-perforant-path-as-a-platform-for-electrode-design-and-optimization
#16
Clayton S Bingham, Kyle Loizos, Gene Yu, Andrew Gilbert, Jean-Marie Bouteiller, Dong Song, Gianluca Lazzi, Theodore W Berger
Owing to the dramatic rise in treatment of neurological disorders with electrical micro-stimulation it has become apparent that the major technological limitation in deploying effective devices lies in the process of designing efficient, safe, and outcome specific electrode arrays. The time-consuming and low-fidelity nature of gathering test data using experimental means and the immense control and flexibility of computational models, has prompted us and others to build models of electrical stimulation of neural networks that can be simulated in a computer...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268631/day-to-day-variability-in-hybrid-passive-brain-computer-interfaces-comparing-two-studies-assessing-cognitive-workload
#17
Samantha L Klosterman, Justin R Estepp, Jason W Monnin, James C Christensen
As hybrid, passive brain-computer interface systems become more advanced, it is important to grow our understanding of how to produce generalizable pattern classifiers of physiological data. One of the most difficult problems in applying machine learning algorithms to these data types is nonstationarity, which can evolve over the course of hours and days, and is more susceptible to changes resulting from complex cognitive function in comparison to simple, stimulus-based processes. This nonstationarity, referenced as day-to-day variability, results in the inability of many learning algorithms to generalize to new data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267430/mapping-the-function-of-neuronal-ion-channels-in-model-and-experiment
#18
William F Podlaski, Alexander Seeholzer, Lukas N Groschner, Gero Miesenböck, Rajnish Ranjan, Tim P Vogels
Ion channel models are the building blocks of computational neuron models. Their biological fidelity is therefore crucial for the interpretation of simulations. However, the number of published models, and the lack of standardization, make the comparison of ion channel models with one another and with experimental data difficult. Here, we present a framework for the automated large-scale classification of ion channel models. Using annotated metadata and responses to a set of voltage-clamp protocols, we assigned 2378 models of voltage- and calcium-gated ion channels coded in NEURON to 211 clusters...
March 6, 2017: ELife
https://www.readbyqxmd.com/read/28265021/a-survey-of-modelling-methods-for-high-fidelity-wind-farm-simulations-using-large-eddy-simulation
#19
REVIEW
S-P Breton, J Sumner, J N Sørensen, K S Hansen, S Sarmast, S Ivanell
Large eddy simulations (LES) of wind farms have the capability to provide valuable and detailed information about the dynamics of wind turbine wakes. For this reason, their use within the wind energy research community is on the rise, spurring the development of new models and methods. This review surveys the most common schemes available to model the rotor, atmospheric conditions and terrain effects within current state-of-the-art LES codes, of which an overview is provided. A summary of the experimental research data available for validation of LES codes within the context of single and multiple wake situations is also supplied...
April 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28264564/quantitative-analysis-of-synthetic-cell-lineage-tracing-using-nuclease-barcoding
#20
Stephanie Tzouanas Schmidt, Stephanie M Zimmerman, Jianbin Wang, Stuart K Kim, Stephen R Quake
Lineage tracing by the determination and mapping of progeny arising from single cells is an important approach enabling the elucidation of mechanisms underlying diverse biological processes ranging from development to disease. We developed a dynamic sequence-based barcode system for synthetic lineage tracing and have demonstrated its performance in C. elegans, a model organism whose lineage tree is well established. The strategy we use creates lineage trees based upon the introduction of synthetically controlled mutations into cells and the propagation of these mutations to daughter cells at each cell division...
March 10, 2017: ACS Synthetic Biology
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