Related Experiment Video
Updated: May 12, 2026
Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Performance tests for mammographic film-screen combinations: use of absolute techniques
1Department of Engineering Physics, Ankara University, Ankara, Turkey. bor@eng.ankara.edu.tr
Purpose:
A performance comparison of film-screen combination used in mammography was conducted using conventional and new techniques.
Materials And Methods:
The performance of 30 mammographic film-screen combinations was evaluated by sensitometry, and the total performance was determined using phantom measurements. Quantum detection and light emission efficiency of the screens were also measured as an alternative technique for determining screen speeds. These efficiency measurements provided quantitative results for selecting the optimum beam quality.
Results:
Considering the image quality scores from three observers and the radiation doses obtained from the speed measurements, eight combinations were selected as being optimal. Only three of the mammographic film screen combinations in this group were the recommendations of manufacturers.
Conclusion:
The total performance phantom can be effectively used for the qualitative check of image and provide speed information for mammographic film-screen combinations comparable to sensitometric techniques.
