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Published on: August 30, 2013
Digital versus screen-film mammography: a retrospective comparison in a population-based screening program
Boel Heddson1, Katarina Rönnow, Magnus Olsson
1Department of Diagnostic Radiology, Hospital of Helsingborg, SE-251 87 Helsingborg, Sweden. boel.heddson@skane.se
European Journal of Radiology
|March 27, 2007
Summary
Digital radiography, particularly photon-counting, matches or exceeds screen-film mammography performance. This technology offers improved data management, making it a viable alternative for breast cancer screening.
Area of Science:
- Radiology and Medical Imaging
- Breast Cancer Screening Technologies
- Digital Health Informatics
Background:
- Screen-film radiography has limitations in data storage and retrieval.
- Digital radiography presents potential advantages for mammography screening programs.
- Performance comparison is crucial to validate digital radiography as an alternative.
Purpose of the Study:
- To compare the performance of screen-film mammography, photon-counting direct radiography (PC-DR), and computed radiography.
- To evaluate cancer detection rates, recall rates, and positive predictive values.
- To assess the average glandular dose for each mammography technique.
Main Methods:
- Retrospective analysis of population-based screening data from Helsingborg Hospital, Sweden (2000-2005).
- Inclusion of 52,172 two-view mammography examinations from 24,875 women.
- Exclusion of initial prevalence screening examinations.
Main Results:
- Photon-counting direct radiography (PC-DR) demonstrated higher cancer detection rates (0.49%) compared to film (0.31%).
- PC-DR and computed radiography had significantly lower recall rates (1.0%) than film (1.4%).
- PC-DR offered a 75% reduction in average glandular dose compared to film mammography.
Conclusions:
- Digital radiography, especially PC-DR, performs comparably or superiorly to screen-film mammography.
- Digital radiography's benefits in data handling support its adoption.
- Digital radiography is a valid and potentially superior alternative for mammography screening.
