2012 Fiscal Year Final Research Report
Cineangiography Using Particle-Induced Dual-Wavelength Pulsed-X-rays for Minimization of Dosages of Contrast Medium and Radiation
| Project/Area Number |
20300175
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
OGURI Yoshiyuki 東京工業大学, 原子炉工学研究所, 教授 (90160829)
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| Co-Investigator(Kenkyū-buntansha) |
HASEGAWA Jun 東京工業大学, 総合理工学研究科(研究院), 准教授 (90302984)
HORIOKA Kazuhiko 東京工業大学, 総合理工学研究科(研究院), 教授 (10126328)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 荷電粒子励起特性 X 線 / 静電加速器 / 造影剤 / 動画撮影 / 二波長差分法 / 高コン トラスト撮影 / 被ばく線量 / 電子増倍型 CCD カメラ |
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| Research Abstract |
We irradiated a rotating target with two metallic plates made of different elements by a MeV proton beam, and alternately produced quasi-monochromatic pulsed X-rays with two different energies: one was lower and the other was higher than the absorption-edge energy of the contrast medium. A cineradiograph of a phantom containing contrast medium was taken using these pulsed X-rays. A moving image which emphasized only the contrast medium was reconstructed by taking the difference between the adjacent frames. From this result, we found that the contrast-medium concentration and the X-ray dose for cineangiography could be reduced by applying this method.
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