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Items for "sensitivity"

Entering the Black Box of Neural Networks

OBJECTIVES: Artificial neural networks have proved to be accurate predictive instruments in several medical domains, but have been criticized for failing to specify the information upon which their predictions are based...

Keywords: Neural networks (computer), diagnosis (computer-assisted, sensitivity, analysis, pneumonia

01/2003 | Methods of Information in Medicine, Schattauer

A Bayesian Approach to Estimate and Validate the False Negative Fraction in a Two-stage Multiple Screening Test

OBJECTIVES: In estimating sensitivity and specificity of a diagnostic kit it is imperative that all study subjects are verified via a gold standard procedure...

Keywords: Bayesian analysis, MCMC, prediction, sensitivity, Validation

01/2004 | Methods of Information in Medicine, Schattauer

How accurate are clinical activity indices for scoring of disease activity in inflammatory bowel disease (IBD)?

Clinical activity indices are essential instruments in monitoring inflammatory bowel diseases such as Crohn's disease (CD) and ulcerative colitis (UC)...

Keywords: activity index, biochemistry, inflammatory bowel disease, sensitivity, specificity

04/2005 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

Analytical performance of a new two-step ADVIA Centaur^® estradiol immunoassay during ovarian stimulation

Measurement of estradiol is useful in women undergoing ovarian stimulation for in vitro fertilization and embryo transfer (IVF-ET)...

Keywords: estradiol, immunoassay, ovarian stimulation, sensitivity

01/2006 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

Combining markers of nephrotoxicity and hepatotoxicity for improved monitoring and detection of chronic alcohol abuse

Background: Most of the commonly used markers of chronic alcohol abuse reflect alcohol hepatotoxicity; however, such abuse is deleterious to the kidneys as well...

Keywords: ?-N-acetylhexosaminidase, biomarker, ?-glutamyltransferase, sensitivity, serum enzyme, specificity, urinary enzyme

12/2006 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

Drug screening: Actual status, pitfalls and suggestions for improvement/Drogenscreening: Gegenwärtiger Stand, Fehlermöglichkeiten und Verbesserungsvorschläge

Immunoassays for drug screening are often regarded as procedures which are easily performed and interpreted...

Keywords: Bestätigungsanalyse, Empfindlichkeit, Immunoassay, Qualitätssicherung, Spezifizität, Teststreifen, Verfälschungsstoffe, Verlaufskontrolle

08/2004 | LaboratoriumsMedizin, Walter de Gruyter

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