ISSN 1004-4140
CN 11-3017/P
Volume 20 Issue 2
Jun.  2011
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ZHENG Peng, HAO Jia, XING Yu-xiang. Methodic Error Analysis of Basis Material Decomposition Method in Dual-Energy Computed Tomography[J]. CT Theory and Applications, 2011, 20(2): 153-162.
Citation: ZHENG Peng, HAO Jia, XING Yu-xiang. Methodic Error Analysis of Basis Material Decomposition Method in Dual-Energy Computed Tomography[J]. CT Theory and Applications, 2011, 20(2): 153-162.
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Methodic Error Analysis of Basis Material Decomposition Method in Dual-Energy Computed Tomography

  • Department of Engineering Physics, Tsinghua University, Beijing 100084, China

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  • Received Date: January 03, 2011
  • Available Online: December 14, 2022
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    • Abstract
  • Dual-energy computed tomography(DECT)can be used for computing atomic number and electron density.As a result,we can discriminate unknown materials.One approach to deal with DECT is by basis material decomposition method.However,this method leads to a large error and bad suppression of metal artifact.This paper focuses on methodic error analysis of basis material decomposition method.Reasons for bad suppression of metal artifact are explained.Also,this paper derived the theoretical formula of methodic error.We give the applicable conditions of this method.In general,this method leads to a small error for low-Z materials and a large error for high-Z materials.
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