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Three-Dimensional Monochromatic X-ray CT

Research Project

Project/Area Number 06555116
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 計測・制御工学
Research InstitutionUniversity of Tsukuba

Principal Investigator

SAITO Tsuneo  Institute of Information Sciences and Electronics University of Tsukuba, Professor, 電子・情報工学系, 教授 (70005312)

Co-Investigator(Kenkyū-buntansha) TAKEDA Tohru  Institute of Clinical Medicine University of Tsukuba, Assistant Professor, 臨床医学系, 講師 (10197311)
KUDO Hiroyuki  Institute of Information Sciences and Electronics University of Tsukuba, Associa, 電子・情報工学系, 助教授 (60221933)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1994: ¥11,000,000 (Direct Cost: ¥11,000,000)
Keywords3-D computer tomography / image reconstruction algorithm / energy subtraction / synchrotron radiation / fluorescent X-rays / 3-D imaging / コンピュータトモグラフィ(CT) / 放射光 / 画像再構成アルゴリズム
Research Abstract

The development of three-dimensional (3-D) monochromatic X-ray CT has been investigated as a new generation CT.Direct reconstruction in 3-D from two-dimensional (2-D) projection data can be achieved by cone-beam CT.
The following findings could be obtained through the investigation as ;
1. Based on the completeness condition for mathematically exact reconstruction, an orthogonal circle-and-line orbit has been adopted as the most promissing scanning method of X-ray source in 3-D CT system configuration.
2. The mathematically exact 3-D CT image reconstruction algorithm has been derived from the inversion formula of 3-D Radon transform in the practically implementable form.
3. Computer simulation studies have demonstrated the validity of the proposed scanning method and the derived reconstruction algorithm.
4. A proto type experimental system of 3-D monochromatic X-ray CT using fluorescent X-rays generated by synchrotron radiation was constructed in National Laboratory for High Energy Physics … More in Tsukuba. The fluorescent X-rays generated by irradiating the target material with a white X-ray produce a cone-beam geometry with large beam area and spatially uniform intensity, and its energy is tunable by changing the target materials.
5. The oject is mounted on the computer controlled device which simulates the scanning of circle-and-line orbit, and 2-D projection data is acquired by the image intensifier. The complete reconstruction of 3-D structure of object could be achieved in this experimental system.
6. Using the desirable characteristic of tunable X-ray source, 3-D image of specific materials (for example contrast materials) is reconstructed by taking subtraction between images above and below K-absorption edge of materials. The 3-D structure of object can be visualized by the visualization software.
7. The most serious problem in the cone-beam data collection scheme is the scattering of photons in tissue which degrades the image quality. If we can resolve this problem, 3-D image with absolute CT value of tissue is available because of the absence of beam hardening. Less

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Hiroyuki Kudo,Tsuneo Saito: "Derivation and Implementation of a Cone-Beam Reconstruction Algorithm for Nonplanar Orbit" IEEE Transaction an Medical Imaging. 13. 196-211 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fukai Toyofuku,et al.: "Development of a fluorescent x-ray source for medical imaging" Review of Scientific Instrumentation. 66. 1981-1983 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 斎藤恒雄: "3次元イメージング -円錐ビーム投影による3次元CT-" MEDICAL IMAGING TECHNOLOGY. 13. 183-188 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo,Tsuneo Saito: "An Extended Completeness Condition for Exact Cone-Beam Recorstru ction and Its Application" Proc.IEEE Nuclear Scien-ce Symposium a Medical Imaging Conference. 1710-1714 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Tsuneo Saito,Hiroyuki Kudo,Tohru Takeda,et al.: "Three-dimensional monochromatic X-ray CT" Proc.SPIE(Application of Digital Image Processing). 2564. 543-557 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo,Tsuneo Saito: "Exact Cone-Beam Reconstruction with a New Completeness Condition" Proc.1995 International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Neuclear Medicine. 255-259 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo and Tsuneo Saito: "Derivation and Implementation of a Cone-Beam Reconstruction Algorithm for Nonplanar Orbit" IEEE Transaction on Medical Imaging. Vol.13, No.1. 196-211 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fukai Toyofuku, Kenji Tokumori, Katsuyuki Nishimura, Tsuneo Saito, Tohru Takeda, et al: "Development of a Fluorescent X-ray source for medical imaging" Review of Scientific Instruments. Vol.66, No.2 Part II. 1981-1983 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Tsuneo Saito: ""Three-Dimensional Imaging" -Cone-Beam 3-D CT-" MEDICAL IMAGING TECHNOLOGY. Vol.13, No.3. 183-188 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo and Tsuneo Saito: "An Extented Completeness Condition for Exact Cone-Beam Reconstruction and Its Application" Proc.IEEE Nuclear Science Symposium & Medical Imaging Conference. 1710-1714 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Tsuneo Saito, Hiroyuki Kud, Tohru Takeda, Yuji Itai, et al: "Three-dimensional monochromatic X-ray CT" Proc.SPIE,Vol.2564, (Application of Digital Image Processing XVII). 543-557 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo and Tsuneo Saito: "Exact Cone-Beam Reconstruction with a New Completeness Condition" Proc.1995 International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. 255-259 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo and Tsuneo Saito: "An Efficient Linogram Sampling Method for Cone-Beam Reconstruction" Proc.IEEE Nuclear Science Symposium & Medical Imaging Conference. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyuki Kudo, Tsuneo Saito: "Derivation and Implementation of a Cone-Beam Reconstruction Algorithm for Nonplanar Orbit" IEEE Transaction m Medical Imaging. 13. 196-211 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Fukai Toyofuku, et al: "Development of a fluorescent X-ray source for medical imaging" Review of Scientific Instrumentation. 66. 1981-1983 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 斎藤恒雄: "3次元イメージング-円錐ビーム投影による3次元CT-" MEDICAL IMAGING TECHNOLOGY. 13. 183-188 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Hiroyuki Kudo, Tsuneo Saito: "An Extended Completeness Condition for Exact Cone-Beam Reconstruction and Its Application" Proc. IEEE Nuclear Science Symposium 4 Medical Imaging Conference. 1710-1714 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Tsuneo Saito, Hiroyuki Kudo et. al: "Three-dimensional monochromatic X-ray CT" Proc. SPIE (Application of Digital Image Processing). 2564. 543-557 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Hiroyuki Kudo, Tsuneo Saito: "Exact Cone-Beam Reconstruction with a New Completenss Condition" Proc, 1995 International Meeting an Fully Three-Dimeusional Image Recanstruction in Radiology and Naclear Medicine. 255-259 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H,Kudo and T.Saito: "Derivation and Implementation of a Cone-Beam Reionstructior Algorlthm for Nonplaner Orbits" IEEE Transactlons an Medical Imaging. 13. 196-211 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H,Kudo and T.Saito: "An Extevded Completeness Conditicn for Exact Cove-Beam Reconstruction and its Application" Proc.IEEE Medical Imaging Conference. (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 斉藤恒雄: "3次元イメージング-円錐ビーム投影による3次元CT-" Medical Imaging Tehnology. 12. 369-378 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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