id:"swepub:oai:gup.ub.gu.se/309818"
Search: id:"swepub:oai:gup.ub.gu.se/309818" > EVALUATION OF VGC A...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Hansson, JonnyGothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences (author)
EVALUATION OF VGC ANALYZER BY COMPARISON WITH GOLD STANDARD ROC SOFTWARE AND ANALYSIS OF SIMULATED VISUAL GRADING DATA
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-05-03
- Oxford University Press (OUP),2021
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/309818
- https://gup.ub.gu.se/publication/309818URI
- https://doi.org/10.1093/rpd/ncab066DOI
Supplementary language notes
- Language:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- The purpose of the present work was to evaluate the use of resampling statistical methods for analysis of visual grading data-implemented in the software VGC Analyzer-by comparing the reanalyzed results from previously performed visual grading studies with the results calculated by gold standard receiver operating characteristic (ROC) methodology, Obuchowski-Rockette (OR)-Dorfman-Berbaum-Metz (DBM) multiple-readers and multiple-case (MRMC) and by analysis of simulated visual grading data where the true distribution was presumed to be known. The reanalysis was performed on two multiple-reader studies with non-paired data and paired data, respectively. The simulation study was performed by simulating a large number of visual grading characteristics (VGC) studies and by analyzing the statistical distribution of null hypothesis (H-0) rejection rate. The comparison with OR-DBM MRMC showed good agreement when analyzing non-paired data for both fixed-reader and random-reader settings for the calculated area under the curve values and the confidence intervals (CIs). For paired data analysis, VGC Analyzer showed significantly lower CIs compared with the ROC software. This effect was also illustrated by the simulation study, where the VGC Analyzer, in general, showed good accuracy for simulated studies with stable statistical basis. For simulated studies with unstable statistics, the accuracy in the H-0 rejection rate decreased. The present study has shown that resampling methodology can be used to accurately perform the statistical analysis of a VGC study, although the resampling technique used makes the method sensitive to small data sets.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Radiologi och bildbehandling hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine Radiology, Nuclear Medicine and Medical Imaging hsv//eng
- dorfman-berbaum-metz
- image quality
- statistical-analysis
- chest
- radiography
- dose reduction
- binormal model
- multireader
- accuracy
- readers
- Environmental Sciences & Ecology
- Public
- Environmental & Occupational
- Health
- Nuclear Science & Technology
- Radiology
- Medical Imaging
Added entries (persons, corporate bodies, meetings, titles ...)
- Månsson, Lars Gunnar,1951Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences(Swepub:gu)xmanla (author)
- Båth, Magnus,1974Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences(Swepub:gu)xbatma (author)
- Göteborgs universitetInstitutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap (creator_code:org_t)
Related titles
- In:Radiation Protection Dosimetry: Oxford University Press (OUP)195:3-4, s. 378-3900144-84201742-3406
Internet link
Find in a library
- Radiation Protection Dosimetry (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Hansson, Jonny
- Månsson, Lars Gu ...
- Båth, Magnus, 19 ...
- About the subject
-
- MEDICAL AND HEALTH SCIENCES
- MEDICAL AND HEAL ...
- and Clinical Medicin ...
- and Radiology Nuclea ...
- Articles in the publication
- Radiation Protec ...
- By the university
- University of Gothenburg
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
