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https://www.readbyqxmd.com/read/28335471/mobile-phonocardiogram-diagnosis-in-newborns-using-support-vector-machine
#1
Amir Mohammad Amiri, Mohammadreza Abtahi, Nick Constant, Kunal Mankodiya
Phonocardiogram (PCG) monitoring on newborns is one of the most important and challenging tasks in the heart assessment in the early ages of life. In this paper, we present a novel approach for cardiac monitoring applied in PCG data. This basic system coupled with denoising, segmentation, cardiac cycle selection and classification of heart sound can be used widely for a large number of the data. This paper describes the problems and additional advantages of the PCG method including the possibility of recording heart sound at home, removing unwanted noises and data reduction on a mobile device, and an intelligent system to diagnose heart diseases on the cloud server...
March 18, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28335044/semi-automated-de-identification-of-german-content-sensitive-reports-for-big-data-analytics
#2
Hannes Seuss, Peter Dankerl, Matthias Ihle, Andrea Grandjean, Rebecca Hammon, Nicola Kaestle, Peter A Fasching, Christian Maier, Jan Christoph, Martin Sedlmayr, Alexander Cavallaro, Matthias Hammon
Purpose Projects involving collaborations between different institutions require data security via selective de-identification of words or phrases. A semi-automated de-identification tool was developed and evaluated on different types of medical reports natively and after adapting the algorithm to the text structure. Materials and Methods A semi-automated de-identification tool was developed and evaluated for its sensitivity and specificity in detecting sensitive content in written reports. Data from 4671 pathology reports (4105 + 566 in two different formats), 2804 medical reports, 1008 operation reports, and 6223 radiology reports of 1167 patients suffering from breast cancer were de-identified...
March 23, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28334612/computing-by-robust-transience-how-the-fronto-parietal-network-performs-sequential-category-based-decisions
#3
Warasinee Chaisangmongkon, Sruthi K Swaminathan, David J Freedman, Xiao-Jing Wang
Decision making involves dynamic interplay between internal judgements and external perception, which has been investigated in delayed match-to-category (DMC) experiments. Our analysis of neural recordings shows that, during DMC tasks, LIP and PFC neurons demonstrate mixed, time-varying, and heterogeneous selectivity, but previous theoretical work has not established the link between these neural characteristics and population-level computations. We trained a recurrent network model to perform DMC tasks and found that the model can remarkably reproduce key features of neuronal selectivity at the single-neuron and population levels...
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28333648/mobile-stride-length-estimation-with-deep-convolutional-neural-networks
#4
Julius Hannink, Thomas Kautz, Cristian Pasluosta, Jens Barth, Samuel Schulein, Karl-Gunter Gassmann, Jochen Klucken, Bjoern Eskofier
OBJECTIVE: Accurate estimation of spatial gait characteristics is critical to assess motor impairments resulting from neurological or musculoskeletal disease. Currently, however, methodological constraints limit clinical applicability of state-ofthe- art double integration approaches to gait patterns with a clear zero-velocity phase. METHODS: We describe a novel approach to stride length estimation that uses deep convolutional neural networks to map stride-specific inertial sensor data to the resulting stride length...
March 9, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28333643/logistic-localized-modeling-of-the-sample-space-for-feature-selection-and-classification
#5
Narges Armanfard, James P Reilly, Majid Komeili
Conventional feature selection algorithms assign a single common feature set to all regions of the sample space. In contrast, this paper proposes a novel algorithm for localized feature selection for which each region of the sample space is characterized by its individual distinct feature subset that may vary in size and membership. This approach can therefore select an optimal feature subset that adapts to local variations of the sample space, and hence offer the potential for improved performance. Feature subsets are computed by choosing an optimal coordinate space so that, within a localized region, within-class distances and between-class distances are, respectively, minimized and maximized...
March 21, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28333587/variational-latent-gaussian-process-for-recovering-single-trial-dynamics-from-population-spike-trains
#6
Yuan Zhao, Il Memming Park
When governed by underlying low-dimensional dynamics, the interdependence of simultaneously recorded populations of neurons can be explained by a small number of shared factors, or a low-dimensional trajectory. Recovering these latent trajectories, particularly from single-trial population recordings, may help us understand the dynamics that drive neural computation. However, due to the biophysical constraints and noise in the spike trains, inferring trajectories from data is a challenging statistical problem in general...
March 23, 2017: Neural Computation
https://www.readbyqxmd.com/read/28333486/transitive-inference-in-humans-homo-sapiens-and-rhesus-macaques-macaca-mulatta-after-massed-training-of-the-last-two-list-items
#7
Greg Jensen, Yelda Alkan, Fabian Muñoz, Vincent P Ferrera, Herbert S Terrace
Transitive inference (TI) is a classic learning paradigm for which the relative contributions of experienced rewards and representation-based inference have been debated vigorously, particularly regarding the notion that animals are capable of logic and reasoning. Rhesus macaque subjects and human participants performed a TI task in which, prior to learning a 7-item list (ABCDEFG), a block of trials presented exclusively the pair FG. Contrary to the expectation of associative models, the high prior rate of reward for F did not disrupt subsequent learning of the entire list...
March 23, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28333123/objective-video-quality-assessment-based-on-machine-learning-for-underwater-scientific-applications
#8
José-Miguel Moreno-Roldán, Miguel-Ángel Luque-Nieto, Javier Poncela, Pablo Otero
Video services are meant to be a fundamental tool in the development of oceanic research. The current technology for underwater networks (UWNs) imposes strong constraints in the transmission capacity since only a severely limited bitrate is available. However, previous studies have shown that the quality of experience (QoE) is enough for ocean scientists to consider the service useful, although the perceived quality can change significantly for small ranges of variation of video parameters. In this context, objective video quality assessment (VQA) methods become essential in network planning and real time quality adaptation fields...
March 23, 2017: Sensors
https://www.readbyqxmd.com/read/28332160/robust-motion-tracking-in-liver-from-2d-ultrasound-images-using-supporters
#9
Ece Ozkan, Christine Tanner, Matej Kastelic, Oliver Mattausch, Maxim Makhinya, Orcun Goksel
PURPOSE: Effectiveness of image-guided radiation therapy with precise dose delivery depends highly on accurate target localization, which may involve motion during treatment due to, e.g., breathing and drift. Therefore, it is important to track the motion and adjust the radiation delivery accordingly. Tracking generally requires reliable target appearance and image features, whereas in ultrasound imaging acoustic shadowing and other artifacts may degrade the visibility of a target, leading to substantial tracking errors...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28331382/faculty-development-for-the-evaluation-system-a-dual-agenda
#10
EDITORIAL
Kellee L Oller, Cuc T Mai, Robert J Ledford, Kevin E O'Brien
Faculty development for the evaluation process serves two distinct goals. The first goal is to improve the quality of the evaluations submitted by the faculty. Providing an accurate assessment of a learner's capabilities is a skill and, similar to other skills, can be developed with training. Frame-of-reference training serves to calibrate the faculty's standard of performance and build a uniform language of the evaluation. Second, areas for faculty professional growth can be identified from data generated from learners' evaluations of the faculty using narrative comments, item-level comparison reports, and comparative rank list information...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28331188/seven-lncrna-mrna-based-risk-score-predicts-the-survival-of-head-and-neck-squamous-cell-carcinoma
#11
Zhi-Li Zhang, Li-Jing Zhao, Liang Chai, Shui-Hong Zhou, Feng Wang, Yan Wei, Ya-Ping Xu, Peng Zhao
Dysregulation of mRNAs and long non-coding RNAs (lncRNAs) is one of the most important features of carcinogenesis and cancer development. However, studies integrating the expression of mRNAs and lncRNAs to predict the survival of head and neck squamous cell carcinoma (HNSC) are still limited, hitherto. In current work, we identified survival related mRNAs and lncRNAs in three datasets (TCGA dataset, E-TABM-302, GSE41613). By random forest, seven gene signatures (six mRNAs and lncRNA) were further selected to develop the risk score model...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330455/exergames-versus-self-regulated-exercises-with-instruction-leaflets-to-improve-adherence-during-geriatric-rehabilitation-a-randomized-controlled-trial
#12
Peter Oesch, Jan Kool, Luis Fernandez-Luque, Ellen Brox, Gunn Evertsen, Anton Civit, Roger Hilfiker, Stefan Bachmann
BACKGROUND: Improving mobility in elderly persons is a primary goal in geriatric rehabilitation. Self-regulated exercises with instruction leaflets are used to increase training volume but adherence is often low. Exergames may improve adherence. This study therefore compared exergames with self-regulated exercise using instruction leaflets. The primary outcome was adherence. Secondary outcomes were enjoyment, motivation and balance during walking. METHODS: Design: single center parallel group non-blinded randomized controlled trial with central stratified randomization...
March 23, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28330163/probing-an-optimal-class-distribution-for-enhancing-prediction-and-feature-characterization-of-plant-virus-encoded-rna-silencing-suppressors
#13
Abhigyan Nath, Karthikeyan Subbiah
To counter the host RNA silencing defense mechanism, many plant viruses encode RNA silencing suppressor proteins. These groups of proteins share very low sequence and structural similarities among them, which consequently hamper their annotation using sequence similarity-based search methods. Alternatively the machine learning-based methods can become a suitable choice, but the optimal performance through machine learning-based methods is being affected by various factors such as class imbalance, incomplete learning, selection of inappropriate features, etc...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328281/educational-role-for-an-advanced-suturing-task-in-the-pediatric-laparoscopic-surgery-simulator
#14
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/28326338/predictors-of-teriparatide-treatment-failure-in-patients-with-low-bone-mass
#15
Tarig Elraiyah, Adil H Ahmed, Zhen Wang, Joshua N Farr, Mohammad H Murad, Matthew T Drake
INTRODUCTION: While teriparatide is the only skeletal anabolic agent approved in the United States, treatment failure is a major concern which complicates its clinical utility. We sought to identify factors that predict response failure in patients with low bone mass. METHOD: We performed a retrospective study of adults with osteopenia or osteoporosis (T-scores < - 1.0 and - 2.5 SD below normal, respectively, at the total hip or lumbar spine) treated with teriparatide at the Mayo Clinic (Rochester, Minnesota) between November 2002-December 2012...
June 2016: Bone Reports
https://www.readbyqxmd.com/read/28326009/improving-eeg-based-driver-fatigue-classification-using-sparse-deep-belief-networks
#16
Rifai Chai, Sai Ho Ling, Phyo Phyo San, Ganesh R Naik, Tuan N Nguyen, Yvonne Tran, Ashley Craig, Hung T Nguyen
This paper presents an improvement of classification performance for electroencephalography (EEG)-based driver fatigue classification between fatigue and alert states with the data collected from 43 participants. The system employs autoregressive (AR) modeling as the features extraction algorithm, and sparse-deep belief networks (sparse-DBN) as the classification algorithm. Compared to other classifiers, sparse-DBN is a semi supervised learning method which combines unsupervised learning for modeling features in the pre-training layer and supervised learning for classification in the following layer...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28325535/age-is-just-a-number-wpath-affiliated-surgeons-experiences-and-attitudes-toward-vaginoplasty-in-transgender-females-under-18-years-of-age-in-the-united-states
#17
Christine Milrod, Dan H Karasic
BACKGROUND: A rising number of female-affirmed transgender adolescents are being treated with gonadotropin-releasing hormone analogues and subsequently cross-sex hormones at early or mid-puberty, with vaginoplasty as the presumed final step in their physical transition. But, despite the minimum age of 18 years defining eligibility to undergo this irreversible procedure, anecdotal reports have shown that vaginoplasties are being performed on minors by surgeons in the United States, thereby contravening the World Professional Association for Transgender Health (WPATH) standards of care (SOC)...
March 16, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28322774/development-and-reliability-of-the-new-endoscopic-virtual-chromoendoscopy-score-the-picasso-score-paddington-international-virtual-chromoendoscopy-score-in-ulcerative-colitis
#18
Marietta Iacucci, Marco Daperno, Mark Lazarev, Razvan Arsenascu, Gian Eugenio Tontini, Oluseyi Akinola, Xianyong Sean Gui, Vincenzo Villanacci, Martin Goetz, Mark Lowerison, Brendan Cord Lethebe, Maurizio Vecchi, Helmut Neumann, Subrata Ghosh, Raf Bisschops, Ralf Kiesslich
INTRODUCTION: Endoscopic inflammation and healing are important therapeutic endpoints in ulcerative colitis (UC). We developed and validated a new electronic virtual chromoendoscopy (EVC) score that could reflect the full spectrum of mucosal and vascular changes including mucosal healing in UC. METHODS: Eight participants reviewed a 60-minute training module outlining the three different i-SCAN modes demonstrating the entire spectrum of inflammatory mucosal and vascular changes in UC...
March 16, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28322125/anatomy-specific-virtual-reality-simulation-in-temporal-bone-dissection
#19
Garrett D Locketz, Justin T Lui, Sonny Chan, Kenneth Salisbury, Joseph C Dort, Patricia Youngblood, Nikolas H Blevins
Objective To evaluate the effect of anatomy-specific virtual reality (VR) surgical rehearsal on surgeon confidence and temporal bone dissection performance. Study Design Prospective pre- and poststudy of a novel virtual surgical rehearsal platform. Setting Academic otolaryngology-head and neck surgery residency training programs. Subjects and Methods Sixteen otolaryngology-head and neck surgery residents from 2 North American training institutions were recruited. Surveys were administered to assess subjects' baseline confidence in performing 12 subtasks of cortical mastoidectomy with facial recess...
March 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28322070/enhancing-clinical-communication-in-dermatologists-a-personalized-educational-intervention
#20
Zoi Tsimtsiou, Charitini Stavropoulou, Noni Papastefanou, Christos Lionis
OBJECTIVES: Effective communication is a vital component of patient-centered consultations with favourable treatment outcomes. This study aimed in testing the effectiveness of a personalized, communication training program for dermatologists in their practices. METHODS: Fifteen dermatologists were offered the educational intervention NO.TE.S. (Non Technical Skills). Depending on the dermatologists' needs, seven to nine sessions with a 60-minute duration were performed, focusing on: patient-centered care, principles of Neurolinguistic Programming, a guide to the medical interview, principles of motivational interviewing and self-care...
March 21, 2017: Journal of Dermatological Treatment
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