| Presentation | 2011-05-27 Continuous-Time Planning System for Intensity Modulated Radiation Therapy Kousuke HASHIDO, Ken'ichi FUJIMOTO, Tetsuya YOSHINAGA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The planning of intensity modulated radiation therapy (IMRT) is to find a solution that optimizes an objective function w.r.t. radiation beams. Although Newton's method is a powerful solving tool, it needs a huge computational cost to compute the Hessian matrix for an objective function and its inverse matrix every iteration. In this report, we proposed a novel optimization method for a dose-distribution-based objective function using a continuous-time dynamical system. The proposed method yields not only the dramatical reduction of a computational cost but also no production of a solution with an unphysical, negative beam coefficient in solving IMRT planning problems. Experimental results also showed that it could find a quasi-optimal solution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IMRT planning / optimization / objective function / Hessian matrix / ordinary differential equations |
| Paper # | NLP2011-22 |
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| Conference Information | |
| Committee | NLP |
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| Conference Date | 2011/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Nonlinear Problems (NLP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Continuous-Time Planning System for Intensity Modulated Radiation Therapy |
| Sub Title (in English) | |
| Keyword(1) | IMRT planning |
| Keyword(2) | optimization |
| Keyword(3) | objective function |
| Keyword(4) | Hessian matrix |
| Keyword(5) | ordinary differential equations |
| 1st Author's Name | Kousuke HASHIDO |
| 1st Author's Affiliation | Graduate School of Health Sciences, The University of Tokushima() |
| 2nd Author's Name | Ken'ichi FUJIMOTO |
| 2nd Author's Affiliation | Institute of Health Biosciences, The University of Tokushima |
| 3rd Author's Name | Tetsuya YOSHINAGA |
| 3rd Author's Affiliation | Institute of Health Biosciences, The University of Tokushima |
| Date | 2011-05-27 |
| Paper # | NLP2011-22 |
| Volume (vol) | vol.111 |
| Number (no) | 62 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |