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Proceedings Paper

A comparison of the performance of new screen-film and digital mammography systems
Author(s): P. Monnin; D. Gutierrez; C. Castella; D. Lepori; F. R. Verdun
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Paper 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.

Paper Details

Date Published: 2 March 2006
PDF: 9 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61423B (2 March 2006); doi: 10.1117/12.650474
Show Author Affiliations
P. Monnin, Univ. Institute for Applied Radiophysics (Switzerland)
D. Gutierrez, Univ. Institute for Applied Radiophysics (Switzerland)
C. Castella, Univ. Institute for Applied Radiophysics (Switzerland)
D. Lepori, Univ. Hospital Ctr. (Switzerland)
F. R. Verdun, Univ. Institute for Applied Radiophysics (Switzerland)

Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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