Research for Super High Resolution CT using CdTe Detector and X-ray Spectroscopy

使用 CdTe 探测器和 X 射线光谱进行超高分辨率 CT 研究

• 批准号: 09357008
• 负责人: YAMASAKI Katsuhito
• 金额: $ 19.14万
• 依托单位: KOBE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09357008/
• 关键词: Super High Resolution CT; Supper high Spatiial Resolution; Synchrotron Radiation; Phase Contrast Image; X-ray Spectroscopy; Cd-Te検出器; 超高空間分解能CT; 肺のCT

In this research project, new imaging system is made to improve spatial resolution. Using conventional High Resolution CT, the best resolution is 0.5mm. But the size of human acinus is about 0.2mm. We must improve spatial resolution to observe human acinus. First step in this project, super high resolution CT is made using conventional X-ray source and Improve detector. This system has 0.1mm. spatial resolution. This resolution is useful to observe acinus.As second step in this project, phase contrast imaging method is developed using synchrotron radiation. In this study, margin of materials is enhanced. We can see pulmonary acinus clearly using this method.As third step in this project, X-ray spectrometer is made. Using this method, 2 dimensional Imaging of Zn, K, S and Ca is obtained.In conclusion, it was suggested that we can reach new horizon of human imaging using Super High Resolution CT , Phase Contrast Imaging and X-ray spectroscopic Imaging.

本研究计画中，我们制作了一套新的成像系统，以提高空间分辨率。使用常规高分辨率CT，最佳分辨率为0.5mm。而人类腺泡的大小约为0.2mm。要观察人类腺泡，必须提高空间分辨率。本项目的第一步是利用常规X射线源和Improve探测器进行超高分辨率CT成像。该系统具有0.1mm。空间分辨率作为本研究的第二步，发展了同步辐射相位衬度成像技术。在这项研究中，材料的边缘增强。作为本课题的第三步，研制了X射线能谱仪。利用该方法对Zn、K、S、Ca等元素进行了二维成像，从而为超高分辨率CT、相位衬度成像和X射线光谱成像开辟了新的研究领域。

项目成果

K.Yamasaki, J.Matsui, Y.Kagoshima, Y.Tsusaka, K.Takai, S.Takeda, K.Yokoyama, S.Murao, S.Maeda, N.Hayashi, S.Sakamoto, Y.Ohno Kazuro, K.Sugimura: "Refraction imaging with parallel X-ray beam for medical use II" Spring-8 User Experiment Report. (to be publi

K.Yamasaki、J.Matsui、Y.Kagoshima、Y.Tsusaka、K.Takai、S.Takeda、K.Yokoyama、S.Murao、S.Maeda、N.Hayashi、S.Sakamoto、Y.Ohno Kazuro、K

K.Yamasaki et al.: "Refraction lmaging with parallel X-ray beam for medical use" Spring-8 User Experiment Report. (to be published).

K.Yamasaki 等人：“医用平行 X 射线束折射成像”Spring-8 用户实验报告。

K.Yamasaki et al.: "Clinical Potential of Refraction Imaging using Synchrotron Radiation." (to be published).

K.Yamasaki 等人：“使用同步辐射的折射成像的临床潜力。”

K.Yamasaki, Y.Suzuki, N.Yagi, K.Umetani, Y.Kohmura: "Refraction Imaging with parallel X-ray beam for medical use" Spring-8 User Experiment Report. (to be published).

K.Yamasaki、Y.Suzuki、N.Yagi、K.Umetani、Y.Kohmura：“医用平行 X 射线束折射成像”Spring-8 用户实验报告。

K.Yamasaki et al.: "Refraction imaging with parallel X-ray beam for medical use II" Spring-8 User Experiment Report. (to be published).

K.Yamasaki 等人：“医用平行 X 射线束折射成像 II”Spring-8 用户实验报告。