Study of medical imaging of X-ray minute point source using synchrotron radiation

同步辐射X射线微小点源医学成像研究

• 批准号: 14570899
• 负责人: YAMASAKI Katsuhito
• 金额: $ 2.18万
• 依托单位: Japan Synchrotron Radiation Research institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14570899/
• 关键词: Ray Tracing method; Microfocus X-ray; Refraction contrast imaging; 微小点光源; 位相画像; 拡大撮像; 放射光; 拡大イメージング

1.Radiation dose was calculated for microangiography by absorption imaging using parallel X-ray beam. These results were in press Radiation Medicine.2.A Nobel method of detecting margin in X-ray imaging was invented. These results were published in Igakubutsuri.3.Osteocyte, osteoblast and fine structure of bone tissue were observed using parallel X-ray beam. These results were published in Radiation Medicine.4.Simulation program was developed to evaluate contrast of obstacle using X-ray tracing method. Contrasts of refraction contrast imaging were compared with those of absorption imaging. These results were in press Radiation Medicine.5.Imaging experiment was performed using Pt.Needle.6.Interfernce of refraction pattern of overlapping obstacles was simulated. The condition of speckle pattern was calculated in this method. These results were in press Radiation Medicine.

1.使用平行X射线束吸收成像计算微血管造影的辐射剂量。这些结果发表在《放射医学》杂志上。2.发明了一种检测X射线成像边缘的诺贝尔方法。这些结果发表在《Igakubutsuri》上。3.利用平行X射线束观察骨细胞、成骨细胞和骨组织的精细结构。这些结果发表在Radiation Medicine上。4.开发了利用X射线追踪方法评估障碍物对比度的模拟程序。将折射对比成像的对比度与吸收成像的对比度进行比较。这些结果发表在《放射医学》杂志上。5.使用Pt.Needle进行成像实验。6.模拟重叠障碍物折射图案的干涉。该方法计算了散斑图案的条件。这些结果发表在《放射医学》杂志上。

项目成果

Masatsugu Hirano: "Evaluation of Radiation Dose required for Angiography"Proc. of Einghth International Conference on Synchrotron Radiation Instrumentation. (In press).

Masatsugu Hirano：“血管造影所需辐射剂量的评估”Proc。

平野雅嗣, 山崎克人, 櫻井孝, 近藤威, 劉嘉忠, 片渕哲朗, 田村進一 他: "血管造影像におけるX線屈折コントラスト効果を利用した血管径計測"医学物理. 23・2. 157-159 (2002)

Masatsugu Hirano、Katsuto Yamazaki、Takashi Sakurai、Takeshi Kondo、Kazutaka Liu、Tetsuro Katabuchi、Shinichi Tamura 等：“利用血管造影图像中的 X 射线折射对比效应测量血管直径”157-159。 (2002)

Hirano M, Yamasaki K, Kitazawa R, Kitazawa S, Okada H, Katafuchi T, Sakurai T, Kondoh T, Ohbayshi C, Maeda S, Sugimura K, Tamura S: "Imaging of fine structure of bone sample with high coherent X-ray beam and high spatial resolution detector"Radiat Med.. 2

Hirano M、Yamasaki K、Kitazawa R、Kitazawa S、Okada H、Katafuchi T、Sakurai T、Kondoh T、Ohbayshi C、Maeda S、Sugimura K、Tamura S：“利用高相干 X 射线对骨骼样本的精细结构进行成像

M.Hirano, K.Yamasaki, R.Kitazawa, K.Sugimura, S.Tamura, et al.: "Imaging of fine structure of bone sample with high coherent X-ray beam and high spatial resolution detector"Radiation Medicine. 22・1. 246-249 (2003)

M.Hirano、K.Yamasaki、R.Kitazawa、K.Sugimura、S.Tamura 等：“利用高相干 X 射线束和高空间分辨率探测器对骨样本的精细结构进行成像”放射医学 22・1. 246-249（2003）

Hirano K, Yamasaki K, Sakurai T, Kondoh T, Ryu Y, Okada H, Sugimura K, Kitazawa R, Maeda S, Katafuchi T, Tamura S: "Measurement of blood vessel diameter for angiography using refraction contrast imaging"Igaku Butsuri. 23-2. 157-9 (2003)

Hirano K、Yamasaki K、Sakurai T、Kondoh T、Ryu Y、Okada H、Sugimura K、Kitazawa R、Maeda S、Katafuchi T、Tamura S：“使用折射对比成像测量血管造影的血管直径”Igaku Butsuri。