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Fundamental study of X-ray video CT for dento-maxillo-facial region

Research Project

Project/Area Number 61570956
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 外科・放射線系歯学
Research InstitutionKyushu University

Principal Investigator

FUKAI Toyofuku  Faculty of Dentistry, Kyushu University, (assistant), 歯学部, 助手 (10117179)

Co-Investigator(Kenkyū-buntansha) KANDA Shigenobu  Facutity of Dentistry, Kyushu University, (professor), 歯学部, 教授 (20014003)
ARIJI Eiichirou  Faculty of Dentistry, Kyushu University, (assistant), 歯学部, 助手 (00150459)
TANAKA Takemasa  Faculty of Dentistry, Kyushu University, (assistant), 歯学部, 助手 (30163538)
小西 圭介  九州大学, 歯学部, 助教授 (40013932)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1987: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1986: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsImage intensifier / CT / Exposure dose / Teeth / 顎骨
Research Abstract

A Low exposure X-ray computed tomography system has been developed for scanning of the dento-maxillo-facial region utilizing an image intensifier as a two-dimensional photon detector. A phantom on a rotating table was projected onto the two-dimensional imaging system by a cone beam of X-rays from the source. A total of 120 projection images covering 180 degress were acquired and stored on a hard disk. The transverse axial sections were reconstructed by the usual CT reconstruction algorithm,while longitudinal sections (such as sagittal, coronal, and arbitrarily curved sections) were obtained by directly back-projecting the filtered projection images onto the surfaces. The radiation exposure was measured with an ionization chamber, and the dose of the present fluoroscopic CT was estimated to be about 10 to 20 times less than that of conventional X-ray CT. It is suggested that this type of CT can be an effective imaging system in a variety of dental diagnostic aplications.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] F.Toyofuku;K.Konishi and S.Kanda: Medical Imaging Technology. 4-2. 189-190 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.Toyofuku;K.Konishi and S.Kanda: Oral Radiology. 2-1. 9-13 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 豊福不可依,田中武昌,神田重信: Medical Imaging Technology. 5-3. 335-343 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.Toyofuku;K.Konishi and S.Kanda: Oral Radiology. 3-2.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.Toyofuku, K.Konishi, and S.Kanda: "Development of a low dose X-ray CT using I.I + TV system" Medical Imaging Technology. 4 (2). 189-190 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.Toyofuku, K.Konishi, and S.Kanda: "Fluoroscopic Computed Tomography: An attempt at 3-D imaging of teeth and jaw bones" Oral Radiology. 2 (1). 9-13 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F. Toyofuku, T.Tanaka, and S.Kanda: "Three-dimensional reconstruction of teeth and jaw bones using X-ray CT with I.I. + TV detector system" Medical Imaging Technology. 5 (3). 335-343 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] F.Toyofuku, T.Tanaka, and S.Kanda: "Three dimensional imaging of teeth and jaw bones using fluoroscopic computed tomography (FCT)" Oral Radiology. 3 (2).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary

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Published: 1987-03-31   Modified: 2016-04-21  

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