X-ray scattering in full-field digital mammography

被引：26
|
作者：
Nykänen, K [1 ]
Siltanen, S [1 ]
机构：
[1] Instrumentat Corp, Imaging Div, Tuusula 04301, Finland
来源：
MEDICAL PHYSICS | 2003年 / 30卷 / 07期
关键词：
D O I：
10.1118/1.1584160
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
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. (C) 2003 American Association of Physicists in Medicine.
引用
收藏
页码：1864 / 1873
页数：10
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