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.

在该研究项目中，建立了新的成像系统以改善空间分辨率。使用常规的高分辨率CT，最佳分辨率为0.5mm。但是人毒素的大小约为0.2mm。我们必须改善空间分辨率，以观察人类的刺激。在该项目的第一步中，超高分辨率CT是使用常规X射线源制造并改善检测器的。该系统具有0.1mm。空间分辨率。该分辨率可用于观察ACINUS。作为该项目的第二步，使用同步加速器辐射开发了相对比成像方法。在这项研究中，材料的边缘得到了增强。我们可以清楚地看到使用此方法清楚地看到肺刺激性。作为该项目的第三步，X射线光谱仪已进行。使用这种方法，获得了Zn，K，S和CA的2维成像。总而言，建议我们使用超高分辨率CT，相位造影剂成像和X射线光谱成像来达到人类成像的新范围。

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。