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553034 
Journal Article 
Single-shot dual-energy subtraction mammography with electronic spectrum splitting: Feasibility 
Bornefalk, H; Lewin, JM; Danielsson, M; Lundqvist, M 
2006 
Yes 
European Journal of Radiology
ISSN: 0720-048X 
60 
2 
275-278 
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[thin space]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. 
Dual-energy imaging; Digital mammography; Contrast-enhancement; Physics; Breast; Breast-diagnosis; Breast radiography; Technology