| Presentation | 2023-03-14 Principle Study of the Dual-Energy Method Introducing Scattered X-rays Takumi Nishiyama, Naohiro Toda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | X-ray CT is a medical imaging system in which an X-ray source is rotated along a cross-section of the human body, the transmission intensity of the X-ray source is detected by an X-ray detector, and a cross-sectional image is reconstructed by a computer. In X-ray CT imaging, scattered X-rays have been removed or corrected as a major cause of artifacts in the reconstructed image. However, scattered X-rays are considered to contain information about the object, and it has been shown that the accuracy of reconstruction can be improved by using such information. There is a previous study that suggests that the coefficients of two basis functions can be estimated in a single irradiation by using scattered X-rays in the Dual-Energy X-ray CT method. In that study, only the photoelectric effect and Compton scattering were considered as X-ray interactions. In this study, we introduced Rayleigh scattering in addition to them and verified the possibility of improving the estimation accuracy with only one measurement by introducing scattered X-rays. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | X-ray CT / Scattered X-rays / Monte Carlo Simulation / Dual-Energy Method / Maximum Likelihood |
| Paper # | MBE2022-63 |
| Date of Issue | 2023-03-06 (MBE) |
| Conference Information | |
| Committee | NC / MBE |
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| Conference Date | 2023/3/13(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Univ. of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Brain architecture, General |
| Chair | Hiroshi Yamakawa(Univ of Tokyo) / Junichi Hori(Niigata Univ.) |
| Vice Chair | Hirokazu Tanaka(Tokyo City Univ.) / Hisashi Yoshida(Kinki Univ.) |
| Secretary | Hirokazu Tanaka(NTT) / Hisashi Yoshida(NICT) |
| Assistant | Yoshimasa Tawatsuji(Waseda Univ.) / Tomoki Kurikawa(KMU) / Emi Yuda(Tohoku Univ) / Miki Kaneko(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Principle Study of the Dual-Energy Method Introducing Scattered X-rays |
| Sub Title (in English) | |
| Keyword(1) | X-ray CT |
| Keyword(2) | Scattered X-rays |
| Keyword(3) | Monte Carlo Simulation |
| Keyword(4) | Dual-Energy Method |
| Keyword(5) | Maximum Likelihood |
| 1st Author's Name | Takumi Nishiyama |
| 1st Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| 2nd Author's Name | Naohiro Toda |
| 2nd Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| Date | 2023-03-14 |
| Paper # | MBE2022-63 |
| Volume (vol) | vol.122 |
| Number (no) | MBE-424 |
| Page | pp.pp.23-26(MBE), |
| #Pages | 4 |
| Date of Issue | 2023-03-06 (MBE) |