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receiver operating characteristic methodology

Statistical Methodology: III  Receiver Operating Characteristic (ROC) Curves

Statistical Methodology: III Receiver Operating Characteristic (ROC) Curves

... The sensitivity of the test at a specific cutpoint is calculated in column 4 Sensitivity.For each cutpoint, sensitivity is defined as the number of patients with appendicitis who have WB[r] ...

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The Combination of Grey System Theory and
Receiver Operating Characteristic Method for
Setting the Standard of Tests

The Combination of Grey System Theory and Receiver Operating Characteristic Method for Setting the Standard of Tests

... An equally important job after assessing the ability of students through the test is standard setting for test, unless the cut scores are appropriately set, the results of the assessment could come into question. ...

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Data Mining Based Receiver Operating  Characteristic (ROC) for Fault Detection and  Diagnosis in Radial Distribution System

Data Mining Based Receiver Operating Characteristic (ROC) for Fault Detection and Diagnosis in Radial Distribution System

... The methodology allows to identify not only the transmission paths and corridors which have congestion problems, but also the scenarios producing these critical situations ...

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Testing the significance of crossover receiver operating characteristic curves in the presence of multiple markers

Testing the significance of crossover receiver operating characteristic curves in the presence of multiple markers

... proposed methodology is supported using a real dataset, namely, Intra Uterine Growth Restricted Fetal Doppler Study (IUGRFDS) dataset (5) and Indian liver patient (ILP) dataset ...

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ROCView : prototype software for data collection in jackknife alternative free response receiver operating characteristic analysis

ROCView : prototype software for data collection in jackknife alternative free response receiver operating characteristic analysis

... A recent study of dose optimisation in CT [12] prompted investigation into a reliable solution for IDRC suited to JAFROC methodology. Although other software exists [13, 14], the authors took the opportunity to ...

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The role of the free response receiver operating characteristic method for dose and image quality optimisation

The role of the free response receiver operating characteristic method for dose and image quality optimisation

... FROC methodology cannot be used effectively in other areas of imaging, but the methods currently being employed by the researcher are better suited to fracture detection on trauma ...

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Comparison between the Prebolus T1 Measurement and the Fixed T1 Value in Dynamic Contrast Enhanced MR Imaging for the Differentiation of True Progression from Pseudoprogression in Glioblastoma Treated with Concurrent Radiation Therapy and Temozolomide Che

Comparison between the Prebolus T1 Measurement and the Fixed T1 Value in Dynamic Contrast Enhanced MR Imaging for the Differentiation of True Progression from Pseudoprogression in Glioblastoma Treated with Concurrent Radiation Therapy and Temozolomide Chemotherapy

... MATERIALS AND METHODS: This retrospective study included 37 patients with histopathologically confirmed glioblastoma with new enhancing lesions after temozolomide chemoradiation defined as true progression (n ⫽ 15) or ...

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Derivation of dose/volume constraints for the anorectum from clinician and patient-reported outcomes in the CHHiP trial of radiotherapy fractionation

Derivation of dose/volume constraints for the anorectum from clinician and patient-reported outcomes in the CHHiP trial of radiotherapy fractionation

... A case/control methodology was used for the dosimetric analysis of late-onset radiotherapy toxicity because ≥moderate side effects were uncommon in CHHiP. “Cases” with ≥moderate late toxicity were defined using ...

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NK and NKT cells in the diagnosis of diffuse lung diseases presenting with a lymphocytic alveolitis

NK and NKT cells in the diagnosis of diffuse lung diseases presenting with a lymphocytic alveolitis

... Receiver operating characteristic (ROC) curves for absolute numbers ( a ) and percentages ( b ) of bronchoalveolar lavage fluid NK and CD8 + cells in the diagnosis of hypersensitivity pn[r] ...

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Detection of neuropathy using a sudomotor test in type 2 diabetes

Detection of neuropathy using a sudomotor test in type 2 diabetes

... as receiver operating characteristic (ROC) curves, to determine the specificity and sensitivity of SMR score to detect PDN, comparing the diabetic groups 1 and 2, and the coefficient of correlation ...

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The shortened disabilities of the arm, shoulder and hand questionnaire (Quick DASH): validity and reliability based on responses within the full length DASH

The shortened disabilities of the arm, shoulder and hand questionnaire (Quick DASH): validity and reliability based on responses within the full length DASH

... disability, receiver operating characteristic (ROC) curves were constructed using change scores (baseline to follow-up) as the test variable and patients' responses to the global item concerning per- ...

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Cross-cultural adaptation and validation of the self-reporting questionnaire among HIV+ individuals in a rural ART program in southern Uganda

Cross-cultural adaptation and validation of the self-reporting questionnaire among HIV+ individuals in a rural ART program in southern Uganda

... the receiver-operating curve for current major depression and any depressive disorder did not differ as a function of age, gender, or education status, suggesting that it can be confidently used in our ...

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Classification of Polymorphic Virus Based on Integrated Features

Classification of Polymorphic Virus Based on Integrated Features

... value, receiver operating characteristic and mean absolute error are compared between two algorithms in the experiment of static, dynamic and integrated ...

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THE ROLE OF ESTIMATION OF BETA –D-GLUCAN IN EARLY DIAGNOSIS OF FUNGEMIA IN FEBRILE NEUTROPENIC PATIENTS.

THE ROLE OF ESTIMATION OF BETA –D-GLUCAN IN EARLY DIAGNOSIS OF FUNGEMIA IN FEBRILE NEUTROPENIC PATIENTS.

... the receiver operating characteristic (ROC) curve was constricting to assess the accuracy of serum βDG levels in discrimination between patients with or without fungemia, by applying optimal cut-off ...

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A Preliminary Receiver Operating Characteristic Analysis on Voice Handicap Index Results of the Greek Voice Disordered Patients

A Preliminary Receiver Operating Characteristic Analysis on Voice Handicap Index Results of the Greek Voice Disordered Patients

... Objective(s): The cutting-edge assessment of voice disorders includes objec- tive and subjective methods in the daily clinical practice. The latter assessment is usually performed through the administration of ...

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Approaches to denote treatment outcome: Clinical Significance and Clinical Global Impression compared

Approaches to denote treatment outcome: Clinical Significance and Clinical Global Impression compared

... F I G U R E 3 Receiver operating characteristic curves and a selection of change threshold levels (Positive Reliable Change Index values) comparing two operating characteristics: dichoto[r] ...

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Draft Guidelines for Evaluating the Clinical Effectiveness of Health Technologies in Ireland, July 2014

Draft Guidelines for Evaluating the Clinical Effectiveness of Health Technologies in Ireland, July 2014

... European Network for Health Technology Assessment Health Information and Quality Authority Health Service Executive hierarchical summary receiver operating characteristic health-related [r] ...

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Robust Techniques for Coherent Change Detection Using Cosmo-Skymed SAR Images

Robust Techniques for Coherent Change Detection Using Cosmo-Skymed SAR Images

... signal to radar receiver noise ratio in the interferometric image pair [2, 10]. γ base quantifies the decorrelation that arises due to mismatch in the acquisition geometries in the primary and repeat-pass ...

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Original Article The clinical value of real-time tissue elastography in diagnosing thyroid malignancy

Original Article The clinical value of real-time tissue elastography in diagnosing thyroid malignancy

... Abstract: Objective: To investigate the diagnostic value of real-time tissue elastography (RTE) in defining the nature of thyroid nodules and its diagnostic efficiency in diagnosing malignant thyroid tumor. Methods: ...

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Statistics review 13: Receiver operating characteristic curves

Statistics review 13: Receiver operating characteristic curves

... When the cut-off value for a continuous diagnostic variable is increased (assuming that larger values indicate an increased chance of a positive outcome), the proportions of both true and false positives decreases. These ...

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