Improvement of Kilo-voltage Cone Beam CT Image Quality with Iterative Optimized Scatter Correction Algorithm
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- KIDA Satoshi
- Graduate School of Medicine, Radiation Oncology, University of Tohoku
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- MASUTANI Yoshitaka
- Graduate School of Computer Science, Intelligent Engineering, Hiroshima City University
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- NAKANO Masahiro
- Graduate School of Medicine, Radiology and Biomedical Engineering, University of Tokyo
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- IMAE Toshikazu
- Department of Radiology, University of Tokyo Hospital
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- NAKAGAWA Keiichi
- Department of Radiology, University of Tokyo Hospital
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- HAGA Akihiro
- Department of Radiology, University of Tokyo Hospital
Bibliographic Information
- Other Title
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- 逐次最適化散乱補正アルゴリズムを用いたkilo-voltage cone beam CTの画質改善
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Abstract
In this study, we developed the iterative optimized scatter correction algorithm, which incorporates scatter correction and statistical iterative reconstruction method for improvement of CBCT image quality. For scatter estimation, scatter measurement with beam blockers and scatter simulation based on Klein-Nishina formula were combined complementally. Statistical image reconstruction (Convex method) and scatter estimation were treated parallelly and incorporated into the iterative optimized scatter correction algorithm. The validation of our proposed method was performed by analysis of the attenuation coefficients of cylindrical water phantom.
Journal
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- Medical Imaging Technology
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Medical Imaging Technology 33 (3), 133-141, 2015
The Japanese Society of Medical Imaging Technology
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Details 詳細情報について
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- CRID
- 1390001204652369792
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- NII Article ID
- 130005072699
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- ISSN
- 21853193
- 0288450X
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed