Abstract
The principle and technical feasibility of dual-energy imaging has already been established in the 1970s and 1980s for dual-energy CT (Alvarez and Macovski, Phys Med Biol. 21(5):733–44, 1976), radiographic imaging (Brody et al., Med Phys. 8(3):353–7, 1981; Lehmann et al., Med Phys. 8(5):659-67, 1981), bone removal in thoracic imaging, mammography (Johns et al., Med Phys. 12:297-304, 1985) (for calcium detection), and iodinated contrast imaging. The development of digital mammography in which digital detectors were used instead of analogue film-screens enabled dual-energy mammography, as it allowed the recording of two images in quick succession and more importantly (digital) post-processing of the images to calculate an iodine contrast-enhanced image.
This chapter describes the physics of contrast-enhanced (dual-energy) mammography (CEM), starting from the basis of mammographic image formation: X-ray generation and attenuation of X-rays in the breast. Next, the principle of dual-energy CEM is discussed, the physics involved in the post-processing of the contrast-enhanced image, and the interpretation of gray values in the image. Furthermore, the current commercial implementations are discussed. The issue of radiation exposure of CEM in comparison with standard full-field digital mammography (FFDM) will also be addressed.
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Jeukens, C.R.L.P.N. (2019). Physics of Contrast-Enhanced Mammography. In: Lobbes, M., Jochelson, M. (eds) Contrast-Enhanced Mammography . Springer, Cham. https://doi.org/10.1007/978-3-030-11063-5_2
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