Abstract
We have developed a dual-energy technique for contrast-enhanced digital breast tomosynthesis using a photon-counting imaging system whereby low- and high-energy images are acquired in a single scan. A W target x-ray source is employed at 49 kV. Sn and Cu filters are used to obtain low- and high-energy images. Iodine enhanced images are calculated by applying a weighted subtraction to the logarithm of the Sn and Cu images. The optimal system configuration and Sn-Cu filter pair were assessed using theoretical modeling. The mean glandular dose was kept to 1 mSv. Optimal weighting factors (w t ) for the subtraction and SDNR between iodine-enhanced and non-enhanced breast background were calculated. Optimal w t and SDNR depend on the Sn-Cu combination and breast thickness. SDNR varies with the dose allocated among the Sn and Cu images.The optimal configuration uses Sn and Cu filters of sufficient thickness to require the maximum mAs achievable by the x-ray tube.
This is a preview of subscription content, log in via an institution to check access.
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Schnall, M.D., Blume, J., Bluemke, et al.: Diagnostic architectural and dynamic features at breast MR imaging: multicenter study. Radiology 238(1), 42–53 (2006)
Chen, S.C., Carton, A.-K., Albert, M., Conant, E.F., et al.: Initial clinical experience with contrast-enhanced digital breast tomosynthesis. Academic Radiology 14, 229–238 (2007)
Carton, A.-K., Li, J., Albert, M., Chen, S., Maidment, A.D.: Quantification for contrast-enhanced digital breast tomosynthesis. In: Flynn, M.J., Hsieh, J. (eds.) Proc. Medical Imaging 2006: Physics of Medical Imaging, San Diego, vol. 6146, pp. 111–121 (2006)
Maidment, A.D.A., Albert, M., Thunberg, S., et al.: Evaluation of a Photon-Counting Breast Tomosynthesis Imaging System. In: Flynn, M.J. (ed.) Proc. SPIE, vol. 5745, pp. 572–582. SPIE, San Diego (2005)
Maidment, A.D.A., Ullberg, C., Lindman, K., et al.: Evaluation of a photon-counting breast tomosynthesis imaging system. In: Flynn, M.J., Hsieh, J. (eds.) Proc. Medical Imaging 2006: Physics of Medical Imaging, vol. 6142, SPIE, San Diego (2006)
Boone, J.M.: Normalized glandular dose (DgN) coefficients for arbitrary x-ray spectra in mammography: Computer-fit values of Monte Carlo derived data. Medical Physics 29(5), 869–875 (2002)
Carton, A.K., Lindman, K., Ullberg, C.K., Francke, T.: Dual-energy subtraction for contrast enhanced digital breast tomosynthesis. In: Hsieh, J., Flynn, M.J. (eds.) Proc. Physics of Medical Imaging, vol. 6510. SPIE, San Diego (2007)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2008 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Carton, AK., Ullberg, C., Lindman, K., Francke, T., Maidment, A. (2008). Optimization of a Dual-Energy Contrast-Enhanced Technique for a Photon Counting Digital Breast Tomosynthesis System. In: Krupinski, E.A. (eds) Digital Mammography. IWDM 2008. Lecture Notes in Computer Science, vol 5116. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-70538-3_17
Download citation
DOI: https://doi.org/10.1007/978-3-540-70538-3_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-70537-6
Online ISBN: 978-3-540-70538-3
eBook Packages: Computer ScienceComputer Science (R0)