| Presentation | 2015-03-16 A Study on Principles of the X-ray CT using Scattered Radiation Tetsuya NAKAGAMI, Youichi YAMAZAKI, Naohiro TODA, Hiroki YOSHIOKA, Shuhji KOYAMA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | X-ray computed tomography (CT) is widely used in the field of medicine for diagnostic purposes, but the radiation dose to which the patient is exposed must be kept to a minimum. Grids are used to eliminate the harmful scattered radiation that occurs with current X-ray CT machines. However, because objects cause scattered radiation, information about the objects can be extracted from it. Using the Monte Carlo method to calculate the amount of scattered radiation, we constructed a maximum likelihood method to estimate its attenuation coefficient. The accuracy of the estimation was evaluated by the mean square error between the estimated value and the true value. Numerical simulation showed that the accuracy of the estimated attenuation coefficient improved without increasing the radiation exposure dose by utilizing the scattered radiation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | X-ray Computed Tomography / scattered radiation / Monte Carlo simulation / Maximum Likelihood Method |
| Paper # | MBE2014-127,NC2014-78 |
| Date of Issue |
| Conference Information | |
| Committee | NC |
|---|---|
| Conference Date | 2015/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Neurocomputing (NC) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Principles of the X-ray CT using Scattered Radiation |
| Sub Title (in English) | |
| Keyword(1) | X-ray Computed Tomography |
| Keyword(2) | scattered radiation |
| Keyword(3) | Monte Carlo simulation |
| Keyword(4) | Maximum Likelihood Method |
| 1st Author's Name | Tetsuya NAKAGAMI |
| 1st Author's Affiliation | School of Information Science and Technology Aichi Prefectural University() |
| 2nd Author's Name | Youichi YAMAZAKI |
| 2nd Author's Affiliation | School of Information Science and Technology Aichi Prefectural University |
| 3rd Author's Name | Naohiro TODA |
| 3rd Author's Affiliation | School of Information Science and Technology Aichi Prefectural University |
| 4th Author's Name | Hiroki YOSHIOKA |
| 4th Author's Affiliation | School of Information Science and Technology Aichi Prefectural University |
| 5th Author's Name | Shuhji KOYAMA |
| 5th Author's Affiliation | Nagoya University Brain and Mind Research Center |
| Date | 2015-03-16 |
| Paper # | MBE2014-127,NC2014-78 |
| Volume (vol) | vol.114 |
| Number (no) | 515 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |