Results 31 to 40 of about 1,541,809 (319)
Pathogens, 2023 The performance of a commercial immunofluorescence assay (IFA commercial), an in-house immunofluorescence assay (IFA in-house) and an indirect enzyme-linked immunosorbent assay (ELISA) were evaluated in the detection of antibodies anti-C. burnetii in the
Danilo Alves de França +11 more
doaj +1 more source
Monitoring functional capacity in heart failure. [PDF]
, 2019 This document reflects the key points of a consensus meeting of the Heart Failure Association of European Society of Cardiology (ESC) held to provide an overview the role of physiological monitoring in the complex multimorbid heart failure (HF) patient ...
Aaby +58 more
core +1 more source
Comparison of different methods involved in the planning of clinical crown lengthening surgery
Brazilian Oral Research, 2010 There is little material in the literature that compares biological width measurements in periapical and bite-wings radiographs with clinical measurements. The purpose of this study was to compare measurements of biological width taken by three different
Fabricio Batistin Zanatta +4 more
doaj +1 more source
Rifampin Drug Resistance Tests for Tuberculosis: Challenging the Gold Standard [PDF]
Journal of Clinical Microbiology, 2013 ABSTRACT The rapid diagnosis of rifampin resistance is hampered by a reported insufficient specificity of molecular techniques for detection of rpoB mutations. Our objective for this study was to document the prevalence and prognostic value of rpoB mutations with unclear phenotypic ...
Bouke C. de Jong +10 more
openaire +2 more sources
A novel platform for isotype-specific testing of autoantibodies. [PDF]
, 2019 The objective of this study was to test if a novel platform could be used for isotype-specific autoantibody testing in humans. Further, we evaluated if testing with this novel platform enables earlier detection of insulin autoantibodies in individuals ...
Carter, Kaylene L +4 more
core +2 more sources
Semiparametric Estimation of the Covariate-Specific ROC Curve in Presence of Ignorable Verification Bias [PDF]
, 2011 Covariate-specific ROC curves are often used to evaluate the classification accuracy of a medical diagnostic test or a biomarker, when the accuracy of the test is associated with certain covariates. In many large-scale screening tests, the gold standard
Liu, Danping, Zhou, Xiao-Hua
core +2 more sources
Unified Least Squares Methods for the Evaluation of Diagnostic Tests With the Gold Standard [PDF]
Cancer Informatics, 2017 The article proposes a unified least squares method to estimate the receiver operating characteristic (ROC) parameters for continuous and ordinal diagnostic tests, such as cancer biomarkers. The method is based on a linear model framework using the empirically estimated sensitivities and specificities as input “data.” It gives consistent estimates for
Liansheng Larry Tang +4 more
openaire +4 more sources
Human papillomavirus testing as a cytology gold standard: comparing Surinam with the Netherlands [PDF]
Modern Pathology, 2005 Polymerase chain reaction to detect high-risk human papillomavirus has been suggested as a gold standard for cytology. The Netherlands and Surinam were prospectively compared in regard to the proportions of Negative, Atypical Squamous Cells of Undetermined Significance, and Squamous Intraepithelial Lesion smears that had detectable high-risk human ...
Mitchell S Wachtel +3 more
openaire +4 more sources
Designing 2-Phase Prevalence Studies in the Absence of a "Gold Standard" Test [PDF]
American Journal of Epidemiology, 2009 A population survey for estimating prevalence is challenging when a disease or condition is difficult to diagnose. If clinical diagnosis is expensive, a 2-phase study, in which less expensive but less accurate tests are administered to all study subjects in the first phase (screening phase) and a more accurate but expensive or time-consuming test is ...
Salim, A., Welsh, A.H.
openaire +3 more sources
The challenging problem of disease staging in human African trypanosomiasis (sleeping sickness): a new approach to a circular question [PDF]
, 2017 Human African trypanosomiasis (HAT), also known as sleeping sickness, puts millions of people at risk in sub-Saharan Africa and is a neglected parasitic disease that is almost always fatal if untreated or inadequately treated. HAT manifests itself in two
Gettinby, George +2 more
core +1 more source