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73 / 2021-10-21 14:42:03
Investigation of basis material decomposition imaging noise from different spectral CT parameters
spectral CT,helical pitch,slice thickness,ASiR ratio
Digital X-ray Imaging System（DR, CT, CBCT）
全文录用
Li Hang / Dalian Medical University
We present a study of the influence of spectral CT parameters on image noise for different base-material decompositions observed by the variation of average standard deviation. The performances of the helical pitch, slice thickness, material density, ASiR algorithm, tube current and monochromatic energy have been discussed in general basis-material decomposition data acquired by a 64-row spectral computerized tomography. The image qualities for different base-material decompositions are presented. The results show that the monochromatic energy, ASiR algorithm and helical pitch influence the image noise at a certain low level, whereas the slice thickness and material density dominate the variation of the average SD value and the image noise. We demonstrate the image quality in current study is consistent with the standard water phantom research. The study indicates the importance of slice thickness as CT imaging parameter in the varied scan protocols for reducing image noise.

 
重要日期

  • 会议日期

    11月13日

    2021

    至

    11月14日

    2021

  • 09月30日 2021

    报告提交截止日期

  • 11月14日 2021

    注册截止日期

主办单位
IEEE北京分会
中国生物医学工程学会医学物理分会
中国电子学会生命电子学分会
承办单位
中国科学技术大学
安徽省生物医学工程学会
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