| Presentation | 2016-03-23 A Theoretical Study on the X-ray CT using Scattered Radiation Tetsuya Nakagami, Naohiro Toda, Naohiro Toda, Hiroki Yoshioka, Shuji Koyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In X-ray computed tomography (CT), scattered X-rays are generally removed by a grid located in front of the detector. However, as objects cause the scattered X-rays, information about the objects can be extracted from them. Therefore, using extracted information from the scattered X-rays, the dose to the patient can be reduced. To confirm this assumption, in the our previous report, we simplified the reconstruction problem to estimate only one value of the attenuation coefficient and examined a numerical experiment. In this study, we theoretically clarified the principle that the use of a dedicated detector for measuring the scattered X-ray improves the accuracy of the estimated attenuation coefficient according to a simplified model. Furthermore, we confirmed this theoretical insight by conducting a Monte Carlo simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | X-ray CT / scattered X-rays / Monte Carlo method / maximum likelihood method |
| Paper # | MBE2015-128 |
| Date of Issue | 2016-03-15 (MBE) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2016/3/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tamagawa University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsuo Kobayashi(Kyoto Univ.) / Toshimichi Saito(Hosei Univ.) |
| Vice Chair | Yutaka Fukuoka(Kogakuin Univ.) / Shigeo Sato(Tohoku Univ.) |
| Secretary | Yutaka Fukuoka(akita noken) / Shigeo Sato(Kogakuin Univ.) |
| Assistant | Takenori Oida(Kyoto Univ.) / Ryota Horie(Shibaura Inst. of Tech.) / Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Theoretical Study on the X-ray CT using Scattered Radiation |
| Sub Title (in English) | |
| Keyword(1) | X-ray CT |
| Keyword(2) | scattered X-rays |
| Keyword(3) | Monte Carlo method |
| Keyword(4) | maximum likelihood method |
| 1st Author's Name | Tetsuya Nakagami |
| 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.) |
| 3rd Author's Name | Naohiro Toda |
| 3rd Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| 4th Author's Name | Hiroki Yoshioka |
| 4th Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| 5th Author's Name | Shuji Koyama |
| 5th Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2016-03-23 |
| Paper # | MBE2015-128 |
| Volume (vol) | vol.115 |
| Number (no) | MBE-513 |
| Page | pp.pp.143-148(MBE), |
| #Pages | 6 |
| Date of Issue | 2016-03-15 (MBE) |