Results 31 to 40 of about 1,591,983 (307)

High-sensitivity cardiac troponin T and copeptin assays to improve diagnostic accuracy of exercise stress test in patients with suspected coronary artery disease [PDF]

open access: yes, 2014
Background: The average diagnostic sensitivity of exercise stress tests (ESTs) is lower than that of other non-invasive cardiac stress tests. The aim of the study was to examine whether high-sensitivity cardiac troponin T (hs-cTnT) or copeptin ...
Dörr, Oliver   +9 more
core   +1 more source

Magnetic resonance mammography in the evaluation of recurrence at the prior lumpectomy site after conservative surgery and radiotherapy [PDF]

open access: yes, 2006
INTRODUCTION: The aim was to assess the value of magnetic resonance mammography (MRM) in the detection of recurrent breast cancer on the prior lumpectomy site in patients with previous conservative surgery and radiotherapy.
Lorenzo Preda   +40 more
core   +2 more sources

Analysis of Predictive Values Based on Individual Risk Factors in Multi-Modality Trials

open access: yesDiagnostics, 2013
The accuracy of diagnostic tests with binary end-points is most frequently measured by sensitivity and specificity. However, from the clinical perspective, the main purpose of a diagnostic agent is to assess the probability of a patient actually being ...
Katharina Lange, Edgar Brunner
doaj   +1 more source

Mutual Information as a Performance Measure for Binary Predictors Characterized by Both ROC Curve and PROC Curve Analysis

open access: yesEntropy, 2020
The predictive receiver operating characteristic (PROC) curve differs from the more well-known receiver operating characteristic (ROC) curve in that it provides a basis for the evaluation of binary diagnostic tests using metrics defined conditionally on ...
Gareth Hughes   +2 more
doaj   +1 more source

Time to blood, respiratory and urine culture positivity in the intensive care unit: Implications for de-escalation

open access: yesSAGE Open Medicine, 2021
Objectives: Concern for late detection of bacterial pathogens is a barrier to early de-escalation efforts. The purpose of this study was to assess blood, respiratory and urine culture results at 72 h to test the hypothesis that early negative culture ...
Lindsey A Sellers   +5 more
doaj   +1 more source

Logic regression-derived algorithms for syndromic management of vaginal infections. [PDF]

open access: yes, 2015
BACKGROUND: Syndromic management of vaginal infections is known to have poor diagnostic accuracy. Logic regression is a machine-learning procedure which allows for the identification of combinations of variables to predict an outcome, such as the ...
Hubbard, Alan   +5 more
core   +4 more sources

Multiparametric MR imaging for detection of clinically significant prostate cancer: a validation cohort study with transperineal template prostate mapping as the reference standard.

open access: yes, 2013
PURPOSE: To evaluate the diagnostic performance of multiparametric (MP) magnetic resonance (MR) imaging for prostate cancer detection by using transperineal template prostate mapping (TTPM) biopsies as the reference standard and to determine the ...
Ahmed, Hashim U   +8 more
core   +1 more source

"INTERGROWTH21st vs customized fetal growth curves in the assessment of the neonatal nutritional status: a retrospective cohort study of gestational diabetes" [PDF]

open access: yes, 2020
Background Gestational diabetes mellitus is associated with increased incidence of adverse perinatal outcomes including newborns large for gestational age, macrosomia, preeclampsia, polyhydramnios, stillbirth, and neonatal morbidity.
Castillo Lara, María   +7 more
core   +1 more source

Methodology of Diagnostic Tests in Hepatology

open access: yesAnnals of Hepatology, 2009
The performance of diagnostic tests can be assessed by a number of methods. These include sensitivity, specificity, positive and negative predictive values, likelihood ratios and receiver operating characteristic (ROC) curves.
Erik Christensen
doaj   +1 more source

Early Contrast Enhancement: a novel Magnetic Resonance Imaging biomarker of pleural malignancy [PDF]

open access: yes, 2018
Introduction: Pleural Malignancy (PM) is often occult on subjective radiological assessment. We sought to define a novel, semi-objective Magnetic Resonance Imaging (MRI) biomarker of PM, targeted to increased tumour microvessel density (MVD) and ...
Alexander, Laura   +10 more
core   +1 more source

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