keyword
MENU ▼
Read by QxMD icon Read
search

Integrated discrimination improvement

keyword
https://www.readbyqxmd.com/read/28105663/lymphocyte-to-monocyte-ratio-and-neutrophil-to-lymphocyte-ratio-as-biomarkers-for-predicting-lymph-node-metastasis-and-survival-in-patients-treated-with-radical-cystectomy
#1
David D'Andrea, Marco Moschini, Kilian M Gust, Mohammad Abufaraj, Mehmet Özsoy, Romain Mathieu, Francesco Soria, Alberto Briganti, Morgan Rouprêt, Pierre I Karakiewicz, Shahrokh F Shariat
PURPOSE: To evaluate the role of lymphocyte-to-monocyte ratio (LMR) and neutrophil-to-lymphocyte ratio (NLR) as pre-operative markers for predicting extravesical disease and survival outcomes in patients undergoing radical cystectomy (RC) for urothelial carcinoma of the bladder (UCB). MATERIALS AND METHODS: Data from 4335 patients undergoing RC for clinically non-metastatic UCB were analyzed. Multivariable logistic regression models were used to predict lymph node involvement and extravesical disease (defined as ≥pT3 and N0)...
January 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28103885/discovery-and-validation-of-immune-associated-long-non-coding-rna-biomarkers-associated-with-clinically-molecular-subtype-and-prognosis-in-diffuse-large-b-cell-lymphoma
#2
Meng Zhou, Hengqiang Zhao, Wanying Xu, Siqi Bao, Liang Cheng, Jie Sun
BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) is an aggressive and complex disease characterized by wide clinical, phenotypic and molecular heterogeneities. The expression pattern and clinical implication of long non-coding RNAs (lncRNAs) between germinal center B-cell-like (GCB) and activated B-cell-like (ABC) subtypes in DLBCL remain unclear. This study aims to determine whether lncRNA can serve as predictive biomarkers for subtype classification and prognosis in DLBCL. METHODS: Genome-wide comparative analysis of lncRNA expression profiles were performed in a large number of DLBCL patients from Gene Expression Omnibus (GEO), including GSE31312 cohort (N = 426), GSE10846 (N = 350) cohort and GSE4475 cohort (N = 129)...
January 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28099868/pdc-sgb-prediction-of-effective-drug-combinations-using-a-stochastic-gradient-boosting-algorithm
#3
Qian Xu, Yi Xiong, Hao Dai, Kotni Meena Kumari, Qin Xu, Hong-Yu Ou, Dong-Qing Wei
Combinatorial therapy is a promising strategy for combating complex diseases by improving the efficacy and reducing the side effects. To facilitate the identification of drug combinations in pharmacology, we proposed a new computational model, termed PDC-SGB, to predict effective drug combinations by integrating biological, chemical and pharmacological information based on a stochastic gradient boosting algorithm. To begin with, a set of 352 golden positive samples were collected from the public drug combination database...
January 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28094091/can-maldi-tof-mass-spectrometry-reasonably-type-bacteria
#4
REVIEW
Marlène Sauget, Benoît Valot, Xavier Bertrand, Didier Hocquet
Bacterial typing is crucial to tackle the spread of bacterial pathogens but current methods are time-consuming and costly. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been recently integrated into the microbiology laboratory workflow for a quick and low-cost microbial species identification. Independent research groups have successfully redirected the original function of this technology from their primary purpose to discriminate subgroups within pathogen species...
January 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28092544/discriminative-multi-view-interactive-image-re-ranking
#5
Jun Li, Chang Xu, Wankou Yang, Changyin Sun, Dacheng Tao
-Given unreliable visual patterns and insufficient query information, content-based image retrieval (CBIR) is often suboptimal and requires image re-ranking using auxiliary information. In this paper, we propose Discriminative Multi-view INTeractive Image Re-ranking (DMINTIR), which integrates User Relevance Feedback (URF) capturing users' intentions and multiple features that sufficiently describe the images. In DMINTIR, heterogeneous property features are incorporated in the multi-view learning scheme to exploit their complementarities...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28088347/disparity-configuration-influences-depth-discrimination-in-na%C3%A3-ve-adults-but-not-in-children
#6
Laurie M Wilcox, Brittney Hartle, Aliya Solski, Kevin J Mackenzie, Deborah Giaschi
We report a series of experiments in which we assess depth discrimination performance in adults and children using a disparity-balanced target configuration to avoid the effects of anticipatory vergence eye movements. In our first study we found that children outperformed adults by a substantial margin, and the adults were consistently near chance. This was surprising given that we initially tested naïve adults to provide a benchmark for the children's data, and all observers met the criterion for stereoacuity...
January 11, 2017: Vision Research
https://www.readbyqxmd.com/read/28078828/biomarkers-upon-discontinuation-of-renal-replacement-therapy-predict-60-day-survival-and-renal-recovery-in-critically-ill-patients-with-acute-kidney-injury
#7
Tingting Yang, Si Sun, Yuliang Zhao, Qiang Liu, Mei Han, Liping Lin, Baihai Su, Songmin Huang, Lichuan Yang
Introduction There is no consensus on the specific indications for weaning critically ill patients with acute kidney injury (AKI) off renal replacement therapy (RRT). This study aimed to explore the prognostic value of several biomarkers measured upon discontinuation of RRT for their value in predicting 60-day survival and renal recovery in an effort to add knowledge to the decision-making process regarding RRT withdrawal. Methods We prospectively enrolled 102 patients with AKI who required RRT from the intensive care unit...
January 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28073351/exploring-neurodevelopmental-outcome-measures-used-in-children-with-cerebral-malaria-the-perspectives-of-caregivers-and-health-workers-in-malawi
#8
Emmie W Mbale, Terrie Taylor, Bernard Brabin, Macpherson Mallewa, Melissa Gladstone
BACKGROUND: Progress has been made in tackling malaria however there are still over 207 million cases worldwide, the majority in children. As survival rates improve, numbers of children with long-term neurodisabling sequelae are likely to increase. Most outcome studies in cerebral malaria (CM) have focused only on body function and structure and less on outcomes within the broader framework of the International Classification of Functioning and Disability (ICF). The aim of this study was to utilise qualitative methods to identify relevant clinical outcomes in CM to support formulation of a core outcome set relevant to CM and other acquired brain injuries for use in future clinical trials...
January 10, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28066840/task-based-design-of-fluence-field-modulation-in-ct-for-model-based-iterative-reconstruction
#9
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/28062624/plasma-n-terminal-prosomatostatin-and-risk-of-incident-cardiovascular-disease-and-all-cause-mortality-in-a-prospective-observational-cohort-the-prevend-study
#10
Ali Abbasi, Lyanne M Kieneker, Eva Corpeleijn, Ron T Gansevoort, Rijk O B Gans, Joachim Struck, Rudolf A de Boer, Hans L Hillege, Ronald P Stolk, Gerjan Navis, Stephan J L Bakker
BACKGROUND: Somatostatin is a component of the well-known insulin-like growth factor-1/growth hormone (GH) longevity axis. There is observational evidence that increased GH is associated with an increased risk of cardiovascular disease (CVD). We aimed to investigate the potential association of plasma N-terminal fragment prosomatostatin (NT-proSST) with incident CVD and all-cause mortality in apparently healthy adults. METHODS: We studied 8134 participants without history of CVD (aged 28-75 years; women, 52...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28062618/use-of-biomarkers-in-predicting-the-onset-monitoring-the-progression-and-risk-stratification-for-patients-with-type-2-diabetes-mellitus
#11
REVIEW
Benjamin M Scirica
BACKGROUND: As the worldwide prevalence of type 2 diabetes mellitus (T2DM) increases, it is even more important to develop cost-effective methods to predict and diagnose the onset of diabetes, monitor progression, and risk stratify patients in terms of subsequent cardiovascular and diabetes complications. CONTENT: Nonlaboratory clinical risk scores based on risk factors and anthropomorphic data can help identify patients at greatest risk of developing diabetes, but glycemic indices (hemoglobin A1c, fasting plasma glucose, and oral glucose tolerance tests) are the cornerstones for diagnosis, and the basis for monitoring therapy...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28061367/an-advanced-mri-and-mrsi-data-fusion-scheme-for-enhancing-unsupervised-brain-tumor-differentiation
#12
Yuqian Li, Xin Liu, Feng Wei, Diana M Sima, Sofie Van Cauter, Uwe Himmelreich, Yiming Pi, Guang Hu, Yi Yao, Sabine Van Huffel
Proton Magnetic Resonance Spectroscopic Imaging ((1)H MRSI) has shown great potential in tumor diagnosis since it provides localized biochemical information discriminating different tissue types, though it typically has low spatial resolution. Magnetic Resonance Imaging (MRI) is widely used in tumor diagnosis as an in vivo tool due to its high resolution and excellent soft tissue discrimination. This paper presents an advanced data fusion scheme for brain tumor diagnosis using both MRSI and MRI data to improve the tumor differentiation accuracy of MRSI alone...
December 27, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28061019/metabolic-phenotyping-of-human-plasma-by-1-h-nmr-at-high-and-medium-magnetic-field-strengths-a-case-study-for-lung-cancer
#13
Louis Evelyne, Francois-Xavier Cantrelle, Liesbet Mesotten, Gunter Reekmans, Liene Bervoets, Karolien Vanhove, Michiel Thomeer, Guy Lippens, Peter Adriaensens
Accurate identification and quantification of human plasma metabolites can be challenging in crowded regions of the NMR spectrum with severe signal overlap. Therefore, this study describes metabolite spiking experiments on the basis of which the NMR spectrum can be rationally segmented into well-defined integration regions, and this for spectrometers having magnetic field strengths corresponding to (1) H resonance frequencies of 400 MHz and 900 MHz. Subsequently, the integration data of a case-control dataset of 69 lung cancer patients and 74 controls were used to train a multivariate statistical classification model for both field strengths...
January 6, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28058053/survival-regression-modeling-strategies-in-cvd-prediction
#14
Mahnaz Barkhordari, Mojgan Padyab, Mahsa Sardarinia, Farzad Hadaegh, Fereidoun Azizi, Mohammadreza Bozorgmanesh
BACKGROUND: A fundamental part of prevention is prediction. Potential predictors are the sine qua non of prediction models. However, whether incorporating novel predictors to prediction models could be directly translated to added predictive value remains an area of dispute. The difference between the predictive power of a predictive model with (enhanced model) and without (baseline model) a certain predictor is generally regarded as an indicator of the predictive value added by that predictor...
April 2016: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28056889/dimensionality-reduction-based-fusion-approaches-for-imaging-and-non-imaging-biomedical-data-concepts-workflow-and-use-cases
#15
Satish E Viswanath, Pallavi Tiwari, George Lee, Anant Madabhushi
BACKGROUND: With a wide array of multi-modal, multi-protocol, and multi-scale biomedical data being routinely acquired for disease characterization, there is a pressing need for quantitative tools to combine these varied channels of information. The goal of these integrated predictors is to combine these varied sources of information, while improving on the predictive ability of any individual modality. A number of application-specific data fusion methods have been previously proposed in the literature which have attempted to reconcile the differences in dimensionalities and length scales across different modalities...
January 5, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28050863/incremental-prognostic-value-of-spect-mpi-in-chronic-kidney-disease-a-reclassification-analysis
#16
Amjad M Ahmed, Waqas T Qureshi, Wesley T O'Neal, Fatima Khalid, Mouaz H Al-Mallah
BACKGROUND: Traditional cardiovascular (CV) risk factors have limited predictive value of CV mortality in patients with chronic kidney disease (CKD, creatinine clearance less than 60 mL/minute per 1.73 m(2)). The aim of this study was to evaluate incremental and independent prognostic value of single-photon emission computerized tomography-myocardial perfusion imaging (SPECT-MPI) across continuum of renal function. METHODS: We retrospectively studied 11,518 (mean age, 65 ± 12 years; 52% were men) patients referred for a clinical indication of SPECT-MPI between April 2004 and May 2009...
January 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28048122/su-f-j-182-investigation-of-systems-for-improved-accuracy-in-clinical-y-90-percent-delivered-calculations
#17
R McBeth, D Elder, A Kesner
PURPOSE: Y-90 Selective Internal Radiation Therapy (SIRT) is used to treat liver tumors, and by nature has variability in the percent of the intended dose that is actually delivered. To determine the quality of the administration, pre and post activity measurements are taken, and used to infer percent delivered. Vendor specifications indicate the use of an ion chamber to take these measurements. In our work, we investigated the accuracy of ion chambers, and compared them to other detector systems...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047607/th-cd-207b-09-task-driven-fluence-field-modulation-design-for-model-based-iterative-reconstruction-in-ct
#18
G Gang, J Siewerdsen, J Stayman
PURPOSE: There has been increasing interest in integrating fluence field modulation (FFM) devices with diagnostic CT scanners for dose reduction purposes. Conventional FFM strategies, however, are often either based on heuristics or the analysis of filtered-backprojection (FBP) performance. This work investigates a prospective task-driven optimization of FFM for model-based iterative reconstruction (MBIR) in order to improve imaging performance at the same total dose as conventional strategies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043619/identifying-patients-at-high-risk-of-tuberculosis-recurrence
#19
Ruxana T Sadikot
Several studies have been done in relation to recurrence of tuberculosis (TB) following completion of treatment. However, recurrence of TB is still a major problem from a public health perspective in high-burden countries, where no special attention is being given to this issue. Disease recurrence is an important indicator of the efficacy of antituberculosis treatment. The rate of recurrence is highly variable and has been estimated to range from 4.9% to 25%. This variability is not only a reflection of regional epidemiology of recurrence but differences in the definitions used by the TB control programs...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28041858/combining-clinical-and-angiographic-variables-for-estimating-risk-of-target-lesion-revascularization-after-drug-eluting-stent-placement
#20
Joshua M Stolker, David J Cohen, Kevin F Kennedy, Michael J Pencina, Suzanne V Arnold, Neal S Kleiman, John A Spertus
BACKGROUND: Drug-eluting stents (DES) reduce restenosis but require prolonged antiplatelet therapy, when compared with bare metal stents. Ideally, the patient should be involved in this risk:benefit assessment prior to selecting DES, to maximize the benefits and cost-effectiveness of care, and to improve medication adherence. However, accurate estimation of restenosis risk may require angiographic factors identified at cardiac catheterization. METHODS: In a large PCI registry, we used logistic regression to identify clinical and angiographic predictors of clinically-driven target lesion revascularization (TLR) over the first year after stent placement...
December 18, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
keyword
keyword
30804
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"