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Nonparametric Multivariate Inference on Shift Parameters

Rationale and Objectives Consider a study evaluating the prognostic value of prostate-specific antigen (PSA), in the presence of Gleason score, in differentiating between early and advanced prosta...

Multivariate Normally Distributed Biomarkers Subject to Limits of Detection and Receiver Operating Characteristic Curve Inference

Rationale and Objectives Biomarkers are of ever-increasing importance to clinical practice and epidemiologic research. Multiple biomarkers are often measured per patient. Measurement of true bioma...

Mixtures of Receiver Operating Characteristic Curves

Rationale and Objectives Receiver operating characteristic (ROC) curves are ubiquitous in the analysis of imaging metrics as markers of both diagnosis and prognosis. While empirical estimation of ...

Interreader Scoring Variability in an Observer Study Using Dual-Modality Imaging for Breast Cancer Detection in Women with Dense Breasts

Rationale and Objectives To evaluate variability in the clinical assessment of breast images, we evaluated scoring behavior of radiologists in a retrospective reader study combining x-ray mammogra...

Inference Based on Diagnostic Measures from Studies of New Imaging Devices

Rationale and Objectives Before using a new diagnostic imaging device regularly in a clinic, it should be studied using patients and radiologists. Often such studies report diagnostic performance ...

Estimating the Receiver Operating Characteristic Curve in Studies That Match Controls to Cases on Covariates

Rationale and Objectives Studies evaluating a new diagnostic imaging test may select control subjects without disease who are similar to case subjects with disease in regard to factors potentially...

Estimating Sensitivity and Specificity for Technology Assessment Based on Observer Studies

Rationale and Objectives The goal of this study was to determine the accuracy and precision of using scores from a receiver operating characteristic rating scale to estimate sensitivity and specif...

An Examination of Data Confidentiality and Disclosure Issues Related to Publication of Empirical ROC Curves

Rationale and Objectives Grant funding institutions often require organizations to share their collected data as widely as possible while safeguarding the privacy of individuals. Summaries based o...

An Additive Selection of Markers to Improve Diagnostic Accuracy Based on a Discriminatory Measure

Rationale and Objectives The estimation of the area under the receiver operating characteristic (ROC) curve (AUC) often relies on the assumption that the truly positive population tends to have hi...

A Brief History of Free-Response Receiver Operating Characteristic Paradigm Data Analysis

In the receiver operating characteristic paradigm the observer assigns a single rating to each image and the location of the perceived abnormality, if any, is ignored. In the free-response receiver...