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Developmental Research for Digital Panoramic Machine Based on a New Mathematical Model

Research Project

Project/Area Number 01870087
Research Category

Grant-in-Aid for Developmental Scientific Research

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

Principal Investigator

FUCHIHATA Hajime  Osaka University Faculty of Dentistry, Professor, 歯学部, 教授 (70028728)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Toru  Asahi Roentgen Industry Co. Ltd., Engineer, 技術部, 係長
AKAGI Shiro  Asahi Roentgen Industry Co, Ltd., Engineer, 技術部, 課長
FUJISHITA Masami  Osaka University, Faculty of Dentistry, Associate Professor, 歯学部, 助教授 (50028809)
TOKUOKA Osamu  Osaka University, Faculty of Dentistry, Assistant, 歯学部, 助手 (70155513)
HAYAMI Akimune  Osaka University, Faculty of Dentistry, Assistant Professor, 歯学部, 講師 (30028477)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥16,400,000 (Direct Cost: ¥16,400,000)
Fiscal Year 1991: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1990: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥13,100,000 (Direct Cost: ¥13,100,000)
KeywordsDigital Radiography / Panoramic X-ray Machine / tomography / Photo Amplifier / パノラマ断層撮影法 / デジタル撮影法 / 断層撮影法 / 画像処理 / スキャノグラフィ-
Research Abstract

(1)A new mathematical model for panoramic tomography was established. A new type of machine for panoramic tomography based on the new mathematical model was developed. This machine have 5 axles and the mechanism is a completely computer-controlled. Auto-focus system and auto image-layer setting program was made for easy operation.
(2)According to the computer simulation, the panoramic images taken by this machine have a constant magnification and no distortion on the focal plane.
(3)Simultaneous multi-film tomography could be made by this machine. Image quality of the tomograins taken by this machine was as good as those taken by a special machine for tomography(Polytome U).
(4)A digital x-ray imaging system was devised. This system consisted of EXICON PANEL(A kind of photo amplifier), CCD line sensor, A/D converter and 32bit micro processor.
(5)Using this imaging system, dental panoramic imaging was perfon-ned.
(6)Picture archiving and communication system for panoramic images was devised. Picture archiving system consisted of Macintosh II and Magneto-optical disc. Picture communicating rate from cpu to cpu was 1.7 Mega byte/sec., and this speed was considered to be enough for clinical use.
(7)The digital images developed by this system were not very good up to date compared with the conventional film images. Now we are developing another x-ray sensor to take better digital panoramic images.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 渕端 孟: "パノラマ断層撮影装置の試作研究" 学術月報. 45. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤下 昌巳: "パノラマおよび口内法X線写真による上顎洞底と歯根の関係について" 日本歯科医師会雑誌. 45. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 徳岡 修: "並列処理構造をもつPACS対応型高解像度画像表示端末の試作" INNERVISION. 6. 58 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 徳岡 修: "パノラマ断層撮影法に関する基礎的研究" 大阪大学歯学雑誌. 36. 8-21 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 徳岡 修: "パノラマ断層撮影法の原理" 歯科ジャ-ナル. 32. 269-276 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] O.TOKUOKA: "The principles of panoramic tomography" Oral Radiology. 5. 31-38 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hajime Fuchihata et al.: "Developmental research on a new type of machine for panoramic tomography" Japanese Scientific Monthly.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Masami Fujishita et al.: "Radiographyic relationship between dental roots and floor of maxillary sinus on the panoramic and intraoral radiograms" The journal of Japan dental association.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Osamu Tokuoka: "Development of a parallel computing image display terminal for PACS" INNRVISION. 6. 58 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Osamu Tokuoka: " A basic study on panoramic tomography" The journal of Osaka university dental society. 36. 8-21 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Osamu Tokuoka: "Fundamentals of panoramic tomograpny" The journal of dental medicine (Japan). 32. 269-276 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Osamu Tokuoka: "The principles of panoramic tomography" Oral radiology. 5. 31-38 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 渕端 孟: "パノラマ断層撮影装置の試作研究" 学術月報. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 徳岡 修: "並列処理構造をもつPACS対応型高解像度画像表示用端末の試作" INNERVISION. 6. 58- (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 徳岡 修: "パノラマ断層撮影法に関する基礎的研究" 大阪大学歯学雑誌. 36. 8-21 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 徳岡 修: "パノラマ断層撮影法の原理" 歯科ジャ-ナル. 32. 269-276 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 徳岡 修: "The Principles of Panoramic Tomography" Oral Radiology. 5. 31-38 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] 徳岡 修: "パノラマ断層撮影法の原理" 歯科ジャ-ナル. 32. 269-276 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1989-04-01   Modified: 2019-02-15  

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