Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications

J. Müller; T. M. Buzug

doi:10.1007/978-3-642-03879-2_198

Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications

Institute of Medical Engineering

Abstract

Dual-energy (DE) CT is an emerging CT operation mode, which has the potential of enabling new and improved artifact reduction methods. Additionally, it introduces functional imaging techniques, which were previously not available on standard CT scanners. The basis of almost all DE reconstruction methods is the assumption that the linear attenuation coefficient can be approximated by two physical processes: the photoelectric absorption and Compton scatter. Unfortunately, the approximation of the photoelectric absorption contains two constant exponents for which appropriate values must be chosen to allow a good approximation. Therefore, in the present work, values for these constants are derived from measured attenuation data and are additionally compared to values found in literature.

Original language	English
Title of host publication	World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany
Number of pages	4
Publisher	Springer Berlin Heidelberg
Publication date	01.12.2009
Pages	709-711
ISBN (Print)	978-3-642-03878-5
ISBN (Electronic)	978-3-642-03879-2
DOIs	https://doi.org/10.1007/978-3-642-03879-2_198
Publication status	Published - 01.12.2009
Event	World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging - Munich , Germany Duration: 07.09.2009 → 12.09.2009 Conference number: 81644

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10.1007/978-3-642-03879-2_198

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title = "Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications",

abstract = "Dual-energy (DE) CT is an emerging CT operation mode, which has the potential of enabling new and improved artifact reduction methods. Additionally, it introduces functional imaging techniques, which were previously not available on standard CT scanners. The basis of almost all DE reconstruction methods is the assumption that the linear attenuation coefficient can be approximated by two physical processes: the photoelectric absorption and Compton scatter. Unfortunately, the approximation of the photoelectric absorption contains two constant exponents for which appropriate values must be chosen to allow a good approximation. Therefore, in the present work, values for these constants are derived from measured attenuation data and are additionally compared to values found in literature.",

author = "J. M{\"u}ller and Buzug, {T. M.}",

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doi = "10.1007/978-3-642-03879-2_198",

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Müller, J & Buzug, TM 2009, Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications. in World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. IFMBE Proceedings, Springer Berlin Heidelberg, pp. 709-711, World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging, Munich , Bavaria, Germany, 07.09.09. https://doi.org/10.1007/978-3-642-03879-2_198

Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications. / Müller, J.; Buzug, T. M.
World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. Springer Berlin Heidelberg, 2009. p. 709-711 (IFMBE Proceedings).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

TY - GEN

T1 - Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications

AU - Müller, J.

AU - Buzug, T. M.

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Y1 - 2009/12/1

N2 - Dual-energy (DE) CT is an emerging CT operation mode, which has the potential of enabling new and improved artifact reduction methods. Additionally, it introduces functional imaging techniques, which were previously not available on standard CT scanners. The basis of almost all DE reconstruction methods is the assumption that the linear attenuation coefficient can be approximated by two physical processes: the photoelectric absorption and Compton scatter. Unfortunately, the approximation of the photoelectric absorption contains two constant exponents for which appropriate values must be chosen to allow a good approximation. Therefore, in the present work, values for these constants are derived from measured attenuation data and are additionally compared to values found in literature.

AB - Dual-energy (DE) CT is an emerging CT operation mode, which has the potential of enabling new and improved artifact reduction methods. Additionally, it introduces functional imaging techniques, which were previously not available on standard CT scanners. The basis of almost all DE reconstruction methods is the assumption that the linear attenuation coefficient can be approximated by two physical processes: the photoelectric absorption and Compton scatter. Unfortunately, the approximation of the photoelectric absorption contains two constant exponents for which appropriate values must be chosen to allow a good approximation. Therefore, in the present work, values for these constants are derived from measured attenuation data and are additionally compared to values found in literature.

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U2 - 10.1007/978-3-642-03879-2_198

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SN - 978-3-642-03878-5

T3 - IFMBE Proceedings

SP - 709

EP - 711

BT - World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany

PB - Springer Berlin Heidelberg

T2 - World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging

Y2 - 7 September 2009 through 12 September 2009

ER -

Refinement of Exponents for the Photoelectric Absorption in Dual-Energy CT Applications

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