A comparison of the performance of new screen-film and digital mammography systems

P. Monnin; D. Gutierrez; C. Castella; D. Lepori; F. R. Verdun

doi:10.1117/12.650474

2 March 2006 A comparison of the performance of new screen-film and digital mammography systems

P. Monnin, D. Gutierrez, C. Castella, D. Lepori, F. R. Verdun

Proceedings Volume 6142, Medical Imaging 2006: Physics of Medical Imaging; 61423B (2006) https://doi.org/10.1117/12.650474
Event: Medical Imaging, 2006, San Diego, California, United States

Abstract

This work compares the detector performances of the recent Kodak Min-R EV 190/Min-R EV and current Kodak Min-R 2190/Min-R 2000 mammography screen-film combinations with the Kodak CR 850M system using the new EHR-M and standard HR plates. Basic image quality parameters (MTF, NNPS and DQE) were evaluated according to ISO 9236-3 conditions (i.e. 28 kV; Mo/Mo; HVL = 0.64 mm eq. Al) at an entrance air kerma level of 60 μGy. Compared with the Min-R 2000, the Kodak Min-R EV screen-film system has a higher contrast and an intrinsically lower noise level, leading to a better DQE. Due to a lower noise level, the new EHR-M plate improves the DQE of the CR system, in comparison with the use of the standard HR plate (30 % improvement) in a mammography cassette. Compared with the CR plates, screen-film systems still permit to resolve finer details and have a significantly higher DQE for all spatial frequencies.

Citation Download Citation

P. Monnin, D. Gutierrez, C. Castella, D. Lepori, and F. R. Verdun "A comparison of the performance of new screen-film and digital mammography systems", Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61423B (2 March 2006); https://doi.org/10.1117/12.650474

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