نتایج جستجو برای: net reclassification improvement

تعداد نتایج: 406535  

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2010
Qingshan Liu Zhen Qian Idean Marvasty Sarah Rinehart Szilard Voros Dimitris N. Metaxas

Conventional whole-heart CAC quantification has been demonstrated to be insufficient in predicting coronary events, especially in accurately predicting near-term coronary events in high-risk adults. In this paper, we propose a lesion-specific CAC quantification framework to improve CAC's near-term predictive value in intermediate to high-risk populations with a novel multiple instance support v...

Journal: :The Journal of clinical endocrinology and metabolism 2015
Jinhui Ma Kerry Siminoski Nathalie Alos Jacqueline Halton Josephine Ho Brian Lentle MaryAnn Matzinger Nazih Shenouda Stephanie Atkinson Ronald Barr David A Cabral Robert Couch Elizabeth A Cummings Conrad V Fernandez Ronald M Grant Celia Rodd Anne Marie Sbrocchi Maya Scharke Frank Rauch Leanne M Ward

OBJECTIVES Our objectives were to assess the magnitude of the disparity in lumbar spine bone mineral density (LSBMD) Z-scores generated by different reference databases and to evaluate whether the relationship between LSBMD Z-scores and vertebral fractures (VF) varies by choice of database. PATIENTS AND DESIGN Children with leukemia underwent LSBMD by cross-calibrated dual-energy x-ray absorp...

Journal: :Genetics and Molecular Biology 2021

The inclusion of a genetic risk score (GRS) can modify the prediction coronary artery disease (CAD), providing an advantage over use traditional models. predictive value information on recurrence major adverse cardiovascular events (MACE) remains controversial. A total 33 variants previously associated with CAD were genotyped in 1587 patients from GENEMACOR study. Of these, 18 presented hazard ...

2015
Sharidan K Parr Amanda J Clark Aihua Bian Ayumi Shintani Nancy E Wickersham Lorraine B Ware T. Alp Ikizler Edward D Siew

Biomarker studies for early detection of acute kidney injury (AKI) have been limited by nonselective testing and uncertainties in using small changes in serum creatinine as a reference standard. Here we examine the ability of urine L-type fatty acid-binding protein (L-FABP), neutrophil gelatinase-associated lipocalin (NGAL), interleukin-18 (IL-18), and kidney injury molecule-1 (KIM-1) to predic...

Journal: :Respiratory care 2016
Hamdi Boubaker Mohamed Habib Grissa Haithem Debbabi Kaouthar Beltaief Zohra Dridi Mohamed Fadhel Najjar Wahid Bouida Riadh Boukef Soudani Marghli Semir Nouira

BACKGROUND Left-ventricular dysfunction associated with COPD exacerbation is frequently underestimated. We tested whether finger plethysmography waveform change during the Valsalva maneuver could aid in the distinction between patients with COPD exacerbation with and without left-ventricular dysfunction. METHODS We included 102 subjects with COPD exacerbation and 51 subjects with acute heart ...

2015
Andreas Holtermann Jacob Louis Marott Finn Gyntelberg Karen Søgaard Ole Steen Mortensen Eva Prescott Peter Schnohr

BACKGROUND The predictive value and improved risk classification of self-reported cardiorespiratory fitness (SRCF), when added to traditional risk factors on cardiovascular disease (CVD) and longevity, are unknown. METHODS AND RESULTS A total of 3843 males and 5093 females from the Copenhagen City Heart Study without CVD in 1991-1994 were analyzed using multivariate Cox hazards regression to ...

Journal: :Hypertension 2015
Roberto Minutolo Francis B Gabbai Paolo Chiodini Carlo Garofalo Giovanna Stanzione Maria Elena Liberti Mario Pacilio Silvio Borrelli Michele Provenzano Giuseppe Conte Luca De Nicola

In nondialysis chronic kidney disease, ambulatory blood pressure (ABP) performs better than clinic BP in predicting outcome, but whether repeated assessment of ABP further refines prognosis remains ill-defined. We recruited 182 consecutive hypertensive patients with nondialysis chronic kidney disease who underwent 2 ABPs 12 months apart to evaluate the enhancement in risk stratification provide...

Journal: :Circulation. Cardiovascular interventions 2014
Giuseppe Andò Cesare de Gregorio Gaetano Morabito Olimpia Trio Francesco Saporito Giuseppe Oreto

BACKGROUND Age, estimated glomerular renal function (eGFR), and ejection fraction are preprocedural predictors of contrast-induced acute kidney injury (CI-AKI) after primary percutaneous coronary intervention. The effect of renal function-adjusted contrast volume (CV) remains not totally explored, and a threshold has not yet been established. METHODS AND RESULTS Logistic regression and receiv...

Journal: :Journal of the American College of Cardiology 2010
Vijay Nambi Lloyd Chambless Aaron R Folsom Max He Yijuan Hu Tom Mosley Kelly Volcik Eric Boerwinkle Christie M Ballantyne

OBJECTIVES We evaluated whether carotid intima-media thickness (CIMT) and the presence or absence of plaque improved coronary heart disease (CHD) risk prediction when added to traditional risk factors (TRF). BACKGROUND Traditional CHD risk prediction schemes need further improvement as the majority of the CHD events occur in the "low" and "intermediate" risk groups. On an ultrasound scan, CIM...

2010
Todd J. Anderson Marinda Fung

Background—Biomarkers of atherosclerosis may refine clinical decision making in individuals at risk of cardiovascular disease. The purpose of the study was to determine the prognostic significance of endothelial function and other vascular markers in apparently healthy men. Methods and Results—The cohort consisted of 1574 men (age, 49.4 years) free of vascular disease. Measurements included flo...

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