@inproceedings{ab985e32970d4184aba807552e37f841,
title = "Scatter correction algorithm without extra exposure for dual-energy digital mammography",
abstract = "X-ray scatter leads to erroneous calculations of dual-energy digital mammography (DEDM). The existing methods for scatter correction in DEDM are using anti-scatter grids or the pinhole-array interpolation method which is complicated and impractical. In this paper, a scatter correction algorithm for DEDM is developed based on the knowledge that scatter radiation in mammograms varies slowly and most pixels in mammograms are non-microcalcification pixels. The proposed algorithm only uses the information of low-energy (LE) and high-energy (HE) images. And it doesn't need anti-scatter grids, lead sheet and extra exposures. Our results show that the proposed scatter correction algorithm is effective. When using the simple least-squares fit and linear interpolation, the scatter to primary ratio (SPR) can be decreased from \textasciitilde{}33.4\% to \textasciitilde{}2.8\% for LE image and from \textasciitilde{}26.2\% to \textasciitilde{}0.8\% for HE image. Applying scatter correction to LE and HE images, the resultant background signal in the DE (dual-energy) calcification image an be reduced significantly.",
keywords = "Dual energy, Mammography, Scatter correction",
author = "Chen Xi and Mou Xuanqin and Yan Hao and Yu Hengyong and Zhang Lei",
year = "2009",
doi = "10.1117/12.813466",
language = "英语",
isbn = "9780819475091",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "Medical Imaging 2009",
note = "Medical Imaging 2009: Physics of Medical Imaging ; Conference date: 09-02-2009 Through 12-02-2009",
}