Single-shot dual-energy subtraction mammography with electronic spectrum splitting: Feasibility

被引：36
作者：
Bornefalk, Hans [1 ]
Lewin, John M.
Danielsson, Mats
Lundqvist, Mats
机构：
[1] KTH, Dept Phys, SE-10044 Stockholm, Sweden
[2] Diversfied Radiol Colorado PC, Denver, CO 80204 USA
[3] Sectra Mamea AB, SE-16440 Stockholm, Sweden
来源：
EUROPEAN JOURNAL OF RADIOLOGY | 2006年 / 60卷 / 02期
关键词：
dual-energy imaging; digital mammography; contrast-enhancement; physics; breast; breast-diagnosis; breast radiography; technology;
D O I：
10.1016/j.ejrad.2006.08.004
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：
We present a single-shot dual-energy subtraction mammography technique using an energy sensitive photon counting detector. An electronic threshold near the middle of the X-ray spectrum discriminates between high- and low-energy photons, and allows the simultaneous acquisition of high- and low-energy images which can be combined to suppress anatomical clutter. By setting the electronic threshold close to 33.2 keV (the k-edge of iodine) the system is optimized for dual-energy contrast-enhanced imaging of breast tumors. This method eliminates the need for separate exposures which might otherwise lead to motion artifacts. The method is illustrated in phantom images. (C) 2006 Published by Elsevier Ireland Ltd.
引用
收藏
页码：275 / 278
页数：4
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