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https://www.readbyqxmd.com/read/28093359/fmri-characterisation-of-widespread-brain-networks-relevant-for-behavioural-variability-in-fine-hand-motor-control-with-and-without-visual-feedback
#1
Stephen D Mayhew, Camillo Porcaro, Franca Tecchio, Andrew P Bagshaw
A bilateral visuo-parietal-motor network is responsible for fine control of hand movements. However, the sub-regions which are devoted to maintenance of contraction stability and how these processes fluctuate with trial-quality of task execution and in the presence/absence of visual feedback remains unclear. We addressed this by integrating behavioural and fMRI measurements during right-hand isometric compression of a compliant rubber bulb, at 10% and 30% of maximum voluntary contraction, both with and without visual feedback of the applied force...
January 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28092556/study-of-saliency-in-objective-video-quality-assessment
#2
Wei Zhang, Hantao Liu
Reliably predicting video quality as perceived by humans remains challenging and is of high practical relevance. A significant research trend is to investigate visual saliency and its implications for video quality assessment. Fundamental problems regarding how to acquire reliable eye-tracking data for the purpose of video quality research and how saliency should be incorporated in objective video quality metrics (VQMs) are largely unsolved. In this paper, we propose a refined methodology for reliably collecting eye-tracking data, which essentially eliminates bias induced by each subject having to view multiple variations of the same scene in a conventional experiment...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28092541/quality-assessment-of-sharpened-images-challenges-methodology-and-objective-metrics
#3
Lukas Krasula, Patrick Le Callet, Karel Fliegel, Milos Klima
Most of the effort in image quality assessment (QA) has been so far dedicated to the degradation of the image. However, there are also many algorithms in the image processing chain that can enhance the quality of an input image. These include procedures for contrast enhancement, deblurring, sharpening, up-sampling, denoising, transfer function compensation, etc. In this work, possible strategies for the quality assessment of sharpened images are investigated. This task is not trivial because the sharpening techniques can increase the perceived quality, as well as introduce artifacts leading to the quality drop (over-sharpening)...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28091280/rotation-elastogram-estimation-using-synthetic-transmit-aperture-technique
#4
Lokesh B, Bhaskara Rao Chintada, Arun Kumar Thittai
It is well-documented in literature that benign breast lesions, such as fibroadenomas, are loosely bonded to their surrounding tissue and tend to slip under a small quasi-static compression, whereas malignant lesions being firmly bonded to their surrounding tissue do not slip. Recent developments in quasi-static ultrasound elastography have shown that an image of the axial-shear strain distribution can provide information about the bonding condition at the lesion-surrounding tissue boundary. Further studies analyzing the axial-shear strain elastograms revealed that nonzero axial-shear strain values appear inside the lesion, referred to as fill-in, only when a lesion is loosely bonded and asymmetrically oriented to the axis of compression...
January 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28089185/joint-replacement-volume-positively-correlates-with-improved-hospital-performance-on-centers-for-medicare-and-medicaid-services-quality-metrics
#5
Rachel A Sibley, Vanessa Charubhumi, Lorraine H Hutzler, Albit R Paoli, Joseph A Bosco
BACKGROUND: The Center for Medicare and Medicaid Services (CMS) is transitioning Medicare from a fee-for-service program into a value-based pay-for-performance program. In order to accomplish this goal, CMS initiated 3 programs that attempt to define quality and seek to reward high-performing hospitals and penalize poor-performing hospitals. These programs include (1) penalties for hospital-acquired conditions (HACs), (2) penalties for excess readmissions for certain conditions, and (3) performance on value-based purchasing (VBP)...
December 21, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28080183/palliative-care-scorecard
#6
Sheri Kittelson, Read Pierce, Jeanie Youngwerth
BACKGROUND: In response to poor healthcare quality outcomes and rising costs, healthcare reform triple aim has increased requirements for providers to demonstrate value to payers, partners, and the public. OBJECTIVE: Electronically automating measurement of the meaningful impact of palliative care (PC) programs on clinical, operational, and financial systems over time is imperative to the success of the field and the goal of development of this automated PC scorecard...
January 12, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28079461/building-the-evidence-base-for-tele-emergency-care-efforts-to-identify-a-standardized-set-of-outcome-measures
#7
Yael Harris, Boyd Gilman, Marcia M Ward, Jonathan Ladinsky, Jacqueline Crowley, Cannon Warren, Craig Caplan
BACKGROUND: To enhance the quality of emergency department (ED) care, some rural hospitals have adopted the use of telemedicine (tele-ED). Without a common set of metrics, it is difficult to quantify the impact of this technology. INTRODUCTION: To address this limitation, the Health Resources and Services Administration funded the identification and testing of a core set of measures that could be used to build a business case for the value of tele-ED care. METHODS: A comprehensive environmental scan was conducted to identify existing measures relevant to assessing ED care and the use of telemedicine...
January 12, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28079016/fast-hplc-fingerprinting-to-discriminate-olive-oil-from-other-edible-vegetable-oils-by-multivariate-classification-methods
#8
Ana M Jiménez-Carvelo, Antonio González-Casado, Estefanía Pérez-Castaño, Luis Cuadros-Rodríguez
A new analytical method for the differentiation of olive oil from other vegetable oils using reversed-phase LC and applying chemometric techniques was developed. A 3 cm short column was used to obtain the chromatographic fingerprint of the methyl-transesterified fraction of each vegetable oil. The chromatographic analysis took only 4 min. The multivariate classification methods used were <em>k</em>-nearest neighbors, partial least-squares (PLS) discriminant analysis, one-class PLS, support vector machine classification, and soft independent modeling of class analogies...
January 12, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28072835/storage-of-maize-in-purdue-improved-crop-storage-pics-bags
#9
Scott B Williams, Larry L Murdock, Dieudonne Baributsa
Interest in using hermetic technologies as a pest management solution for stored grain has risen in recent years. One hermetic approach, Purdue Improved Crop Storage (PICS) bags, has proven successful in controlling the postharvest pests of cowpea. This success encouraged farmers to use of PICS bags for storing other crops including maize. To assess whether maize can be safely stored in PICS bags without loss of quality, we carried out laboratory studies of maize grain infested with Sitophilus zeamais (Motshulsky) and stored in PICS triple bags or in woven polypropylene bags...
2017: PloS One
https://www.readbyqxmd.com/read/28072806/endoscopic-spine-surgery-distance-patients-will-travel-for-minimally-invasive-spine-surgery
#10
Albert E Telfeian, Menno Iprenburg, Ralf Wagner
BACKGROUND: Transforaminal lumbar endoscopic discectomy is a minimally invasive spine surgery procedure performed principally for the treatment of lumbar herniated discs. Endoscopic spine surgeons around the world have noted how far patients will travel to undergo this minimally invasive spine surgery, but the actual distance patients travel has never been investigated. OBJECTIVE: We present here our analysis of how far patients will travel for endoscopic spine surgery by studying the referral patterns of patients to 3 centers in 3 different countries...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28070707/value-based-assessment-of-radiology-reporting-using-radiologist-referring-physician-two-way-feedback-system-a-design-thinking-based-approach
#11
Faiq Shaikh, Kenneth Hendrata, Brian Kolowitz, Omer Awan, Rasu Shrestha, Christopher Deible
In the era of value-based healthcare, many aspects of medical care are being measured and assessed to improve quality and reduce costs. Radiology adds enormously to health care costs and is under pressure to adopt a more efficient system that incorporates essential metrics to assess its value and impact on outcomes. Most current systems tie radiologists' incentives and evaluations to RVU-based productivity metrics and peer-review-based quality metrics. In a new potential model, a radiologist's performance will have to increasingly depend on a number of parameters that define "value," beginning with peer review metrics that include referrer satisfaction and feedback from radiologists to the referring physician that evaluates the potency and validity of clinical information provided for a given study...
January 9, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28070644/-patient-perspective-of-pain-assessment-by-nursing-personnel-qualitative-cross-sectional-study-on-use-of-the-nrs
#12
L Gerken, A Windisch, R Thalhammer, S Olwitz, E Fay, H Al Hussini, B Reuschenbach
BACKGROUND: The assessment of pain as a part of adequate pain management is an integral part of the clinical routine. Much research has been carried out concerning use, relevance and validity of different assessment scales; however, patients' perspective of pain assessment has not yet been studied in Germany. The aim of the present study was to collate patients' experiences regarding pain assessment based on the numeric rating scale (NRS). MATERIALS AND METHODS: The survey was conducted as a qualitative cross-sectional study based on the grounded theory methodology by Strauss and Corbin...
January 9, 2017: Der Schmerz
https://www.readbyqxmd.com/read/28068480/magnetic-resonance-imaging-characterization-and-clinical-outcomes-after-neocart-surgical-therapy-as-a-primary-reparative-treatment-for-knee-cartilage-injuries
#13
Devon E Anderson, Riley J Williams, Thomas M DeBerardino, Dean C Taylor, C Benjamin Ma, Marie S Kane, Dennis C Crawford
BACKGROUND: Autologous cartilage tissue implants, including the NeoCart implant, are intended to repair focal articular cartilage lesions. Short-term results from United States Food and Drug Administration (FDA) phase I and phase II clinical trials indicated that the NeoCart implant was safe when surgically applied as a cell-based therapy and efficacious compared with microfracture. HYPOTHESIS: Quantitative magnetic resonance imaging (MRI) analysis would reveal NeoCart tissue maturation through to 60-month follow-up...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28068167/vehicle-exposure-and-spinal-musculature-fatigue-in-military-warfighters-a-meta-analysis
#14
Roger O Kollock, Kenneth E Games, Alan E Wilson, JoEllen M Sefton
CONTEXT:  Spinal musculature fatigue from vehicle exposure may place warfighters at risk for spinal injuries and pain. Research on the relationship between vehicle exposure and spinal musculature fatigue is conflicting. A better understanding of the effect of military duty on musculoskeletal function is needed before sports medicine teams can develop injury-prevention programs. OBJECTIVE:  To determine if the literature supports a definite effect of vehicle exposure on spinal musculature fatigue...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28066840/task-based-design-of-fluence-field-modulation-in-ct-for-model-based-iterative-reconstruction
#15
Grace J Gang, Jeffrey H Siewerdsen, J Webster Stayman
A task-driven imaging framework for prospective fluence field modulation (FFM) is developed in this paper. The design approach uses a system model that includes a parameterized FFM acquisition and model-based iterative reconstruction (MBIR) for image formation. Using prior anatomical knowledge (e.g. from a low-dose 3D scout image), accurate predictions of spatial resolution and noise as a function of FFM are integrated into a task-based objective function. Specifically, detectability index (d'), a common metric for task-based image quality assessment, is computed for a specific formulation of the imaging task...
July 2016: Conference Proceedings of International Conference on Image Formation in X-Ray Computed Tomography
https://www.readbyqxmd.com/read/28065490/burnout-among-cardiologists
#16
EDITORIAL
Jeffrey B Michel, Denisse M Sangha, John P Erwin
Burnout is a loss of enthusiasm for work, cynicism, and a low sense of accomplishment. Loss of autonomy and authority, complex regulatory requirements, report cards, quality metrics, the rise of large integrated health care systems, and the demise of solo practice are just a few realities of medical practice that contribute to physician burnout. Physicians suffering burnout often focus on compensation and perceived status as antidotes, although evidence suggests they play no role. Randomized controlled trials suggest that interventions designed to improve coping and resiliency including cognitive behavioral therapy and physical and mental relaxations to reduce stress can be effective...
December 18, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28064384/gut-microbiota-composition-associated-with-alterations-in-cardiorespiratory-fitness-and-psychosocial-outcomes-among-breast-cancer-survivors
#17
Jesseca A Paulsen, Travis S Ptacek, Stephen J Carter, Nianjun Liu, Ranjit Kumar, LaKeshia Hyndman, Elliot J Lefkowitz, Casey D Morrow, Laura Q Rogers
PURPOSE: In this proof-of-concept pilot study, our purpose was to determine correlations between gut microbiota composition and alterations in cardiorespiratory fitness and psychosocial outcomes among post-primary treatment breast cancer survivors (BCS). METHODS: Composition of the gut microbiota in BCS (n = 12) was assessed at baseline (M0) and at the end of 3 months (M3) using Illumina MiSeq DNA Sequencing of the 16S rRNA gene. Gut microbiota composition was analyzed using the QIIME bioinformatics software and represented through diversity metrics and taxa analyses...
January 7, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28064063/a-new-approach-to-obtain-metric-data-from-video-surveillance-preliminary-evaluation-of-a-low-cost-stereo-photogrammetric-system
#18
Paolo Russo, Emanuela Gualdi-Russo, Alberto Pellegrinelli, Juri Balboni, Alessio Furini
Using an interdisciplinary approach the authors demonstrate the possibility to obtain reliable anthropometric data of a subject by means of a new video surveillance system. In general the use of current video surveillance systems provides law enforcement with useful data to solve many crimes. Unfortunately the quality of the images and the way in which they are taken often makes it very difficult to judge the compatibility between suspect and perpetrator. In this paper, the authors present the results obtained with a low-cost photogrammetric video surveillance system based on a pair of common surveillance cameras synchronized with each other...
December 23, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28062445/algorithm-sensitivity-analysis-and-parameter-tuning-for-tissue-image-segmentation-pipelines
#19
George Teodoro, Tahsin M Kurç, Luís F R Taveira, Alba C M A Melo, Yi Gao, Jun Kong, Joel H Saltz
MOTIVATION: Sensitivity analysis and parameter tuning are important processes in large-scale image analysis. They are very costly because the image analysis workflows are required to be executed several times to systematically correlate output variations with parameter changes or to tune parameters. An integrated solution with minimum user interaction that uses effective methodologies and high performance computing is required to scale these studies to large imaging datasets and expensive analysis workflows...
January 5, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28062335/productivity-in-pediatric-palliative-care-measuring-and-monitoring-an-elusive-metric
#20
Erica C Kaye, Zachary R Abramson, Jennifer M Snaman, Sarah E Friebert, Justin N Baker
CONTEXT: Workforce productivity is poorly defined in healthcare. Particularly in the field of pediatric palliative care (PPC), the absence of consensus metrics impedes aggregation and analysis of data to track workforce efficiency and effectiveness. Lack of uniformly measured data also compromises the development of innovative strategies to improve productivity and hinders investigation of the link between productivity and quality of care, which are interrelated but not interchangeable...
January 3, 2017: Journal of Pain and Symptom Management
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