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X‐ray scattering in full‐field digital mammography
Author(s) -
Nykänen Kirsi,
Siltanen Samuli
Publication year - 2003
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.1584160
Subject(s) - digital mammography , scattering , mammography , optics , physics , field (mathematics) , noise (video) , computational physics , computer science , mathematics , medicine , artificial intelligence , image (mathematics) , breast cancer , cancer , pure mathematics
Effects of x‐ray scattering on full‐field digital mammography are analyzed with the scattering model of Seibert and Boone [Med. Phys. 15 , 567–575 (1988)]. A new method is introduced for the estimation of model parameters from measurements. It is shown that with breasts thinner than a certain threshold, removing the anti‐scatter grid leads to an improved contrast‐to‐noise ratio with a smaller patient dose. A fast approximate algorithm is presented for determining the scattered field in a gridless digital mammogram.