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

1998 Fiscal Year Final Research Report Summary

• Project/Area Number: 09357008
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 展開研究
• Research Field: Radiation science
• Research Institution: KOBE UNIVERSITY
• Principal Investigator: YAMASAKI Katsuhito KOBE UNIV., RADIOLOGY,LECTURER, 医学部・附属病院, 講師 (50210381)
• Co-Investigator(Kenkyū-buntansha): YOSHIDA Shoji KOCHI MEDICAL COLLEGE,RADIOLOGY,PROF., 医学部, 教授 (20030869) ; MATSUI Junji HIMEJI INSTITUTE OF TECHNOLOGY,PHYSICS,PROF., 理学部, 教授 (10295751) ; ANDO Masami K.E.K., PHYSICS,PROF., 教授 (30013501) ; SUGIMURA Kazuro KOBE UNIV., RADIOLOGY,PROF., 医学部, 教授 (00136384)
• Project Period (FY): 1997 – 1998
• Keywords: Super High Resolution CT / Supper high Spatiial Resolution / Synchrotron Radiation / Phase Contrast Image / X-ray Spectroscopy

Research Abstract

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.

Research Products

• [Publications] K.Yamasaki et al.: "Refraction Imaging with parallel X-ray beam for medical use." Spring-8 User Experiment Report. (to be published).
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Yamasaki et al.: "Refraction imaging with parallel X-ray beam for medical use II" Spring-8 User Experiment Report. (to be published).
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Suzuki et al.: "Refraction-enhanced X-ray Imaging of Mouse Lung using Synchrotron Radiation" (to be published).
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Yamasaki et al.: "Clinical Potential of Refraction Imaging using Synchrotron Radiation." (to be published).
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 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).
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] 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 published).
  • Description: 「研究成果報告書概要(欧文)」より