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Theoretical analysis of diagnostic process of medical image and optimization of CRT image processing

Research Project

Project/Area Number 09307016
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionNagoya University

Principal Investigator

ISHIGAKI Takeo  School of Medicine, Nagoya University Radiology Professor, 医学部, 教授 (60094356)

Co-Investigator(Kenkyū-buntansha) IKEZOE Junpei  Ehime University School of Medicine Radiology Professor, 医学部, 教授 (70115989)
NAKATA Hajime  University of Occupational and Environment Health, Japan Radiology Professor, 医学部, 教授 (90038836)
YOSHIDA Shoji  Kochi Medical School Radiology Professor, 医学部, 教授 (20030869)
SHIMAMOTO Kazuhiro  School of Medicine, Nagoya University Radiology Assistant Professor, 医学部, 助教授 (70178961)
IKEDA Mitsuru  School of Medicine, Nagoya University Medical Information & Records Associate Pr, 医学部, 助教授 (50184437)
河野 通雄  神戸大学, 医学部, 教授 (60030938)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥19,200,000 (Direct Cost: ¥19,200,000)
Fiscal Year 1998: ¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1997: ¥15,300,000 (Direct Cost: ¥15,300,000)
Keywordscomputed radiograph (CR) / cathod ray tube (CRT) display / image processing
Research Abstract

The purpose of this research is to clarify the relationship between the characteristic of subtle abnormal pulmonary findings and observer's diagnostic performance in the imagediagnostic process when CR(computed radiograph) chest image is interpreted on a ORT viewing station, to optimize various kinds of image processing, and finally to establish the most effective image-processing on CRT diagnosis. The result of the interpretation of subtle pulmonary abnormalities on the ORT monitor showed that high frequency enhancement, was not necessary beneficial because the normal arteries often mimicked the abnormal interstitial shadows. Generally low frequency enhancement processing was better than high frequency enhancement In addition, the presence of subtle ground glass finding may be missed on a soft-copy image due to inadequate image processing resulting in blurred image, although detected on the conventional film image. The effect of image processing differs depending on the type and characteristic of abnormalities.
Interobserver's difference was also found in the evaluation of the effect of image processing. Imaging diagnosis on CRT monitor has a merit of freely available image processing. However, diagnostic criterion and its process developed from conventional screen-film image are not necessary applied directly to-soft copy image. Especially, high frequency enhancement, processing often induces over- or underdiagnosis of chest image.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] 石垣武男 他: "デジタル画像の臨床評価" INNER VISION. 12(7). 38-43 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 石垣武男 他: "医用画像管理システムと病院情報システムとの統合.名古屋大学医学部付属病院の現状と構想" Medical Diagnostic Technology. 15(4). 375-379 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 石垣武男,他: "診断行動原理に基づいた画像診断ワークステーションの開発" INNER VISION. 12・8. 15 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 石垣武男 他: "医用画像管理システムと病院情報システムとの統合.名古屋大学医学部付属病院の現状と構想" Medical Diagnostic Technology. 15(4). 375-379 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mitsuru Ikeda,et al: "Evaluation of a neural network classifier for pancreatic masses based on CT findings." Computeried Medical Imaging and Graphics. 21(3). 175-183 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Shunji Koyama,et al: "Breast ultrasonography:Computer-aided diagnosis using fuzzy inference" J Ultrasound Med. 16. 665-672 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Rie Nimi,et al: "Eye-tracking device comparisons of three methods of magnetic resonance image series displays." J Digit Imaging. 10(4). 147-151 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takeo Ishigaki,: "Is color CRT chest iamges available in PACS environment? Proceedings of the 11th International Symposium and Exhibition.CAR'97" Excepta Medica International Congress Series. 969. 1134 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Oda N,et al: "Evaluation of an aoutomatic-mode image processing method in chest computed radiography." Acad Radiol. 4. 558-564 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nishimura K,et al: "Comparison of different computed tomography scanning methods for quantifying emphysema." J Thorac Imaging. 13. 193-198 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mingming Zhang,et al: "Evaluation of blood flow patterns with dynamic CT." Radiology. 205(2). 471-478 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Honda O,et al: "Nakamura H. Visualization of air-trapping area with expiratory CT in hypersensitivity pneumonitis." Radiation Medicine. 16. 293-295 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ishigaki T,Shimamoto K,Ikeda M,Endo T.: "Clinical evaluation of digital image." Innervision. 12(7). 38-43 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ishigaki T,Shimamoto K,Ikeda M.Yamauchi K.: "Integration of PACS and hospital information." Medical Diagnostic Technology. 15(4). 375-379 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ishigaki T,Shimamoto K,Niimi R.: "Development of imageviewing workstation based on theobserver's performance" INNERVISION. 12(8). 15 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mitsuru Ikeda, Shigeki Ito, Takeo Ishigaki, Kazunobu Yamauchi: "Evaluation of a neural network classifier for pancreatic masses based on CT findings." Computeried Medical Imaging and Graphics. 21(3). 175-183 (1977)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Shunji Koyama, Yasunori Obata, Kazuhiro Shimamoto, Takeo Ishigaki, Naohiro Ishii, Yukuo Isomoto, Katusmi Yoshine: "Breast ulttrasonography : Computer-aided diagnosis using fuzzy inference" J Ultrasound Med. 16. 665-672 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Rie Nimi, Kazuhiro Shimamoto, Akiko Sawaki, Takeo Ishigaki, Yukio Takahashi, Naoki Sugiyama and Eitaro Nishihara: "Eye-tracking device comparisons of three methods of magnetic resonance image series displays." J Digit Imaging. 10(4). 147-151 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takeo Ishigaki, Mitsuru Ikeda, Kazuhiro Shimamoto, Tokiko Endo, Takahiro Kozuka, Tomoho Maeda, Junpei Ikezoe, Kiyonari Inamura: "Is color CRT chest iamges available in PACS environment?" Proceedings of the 11th International Symposium and Exhibition. CAR'97 : 969, Excepta Medica International Congress Series 1134. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Oda N,Nakata H,Watanabe H,Terada K.: "Evaluation of an aoutomatic-mode image processing method in chest computed radiography." Acad Radiol. 4. 558-564 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nishimura K,Murata K,Yamagichi M,et al.: "Comparison of different computed tomography scanning methods for quantifying emphysema." J Thorac Imaging. 13. 193-198 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mingming Zhang, Michio Kono: "Solitary pulmonary nodules : Evaluation of blood flow patterns with dynamic CT" Radiology. 205(2). 471-478 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Honda O,Johkoh T,Ichikado K,Mihara N,Higashi M,Yoshida S,Arisawa L,Ikezoe J,Naitoh H,Nakamura H.: "Visualzation of air-trapping area with expiratory CT in hypersensitivity pneumonitis." Radiation Medicine. 16. 293-295 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 石垣武男 他: "デジタル画像の臨床評価" INNER VISION. 12(7). 38-43 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 石垣武男 他: "医用画像管理システムと病院情報システムとの統合・名古屋大学医学部附属病院の現状と構想" Medical Diagnostic Technology. 15(4). 375-379 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 石垣武男 他: "診断行動原理に基づいた画像診断ワークステーションの開発" INNER VISION. 12・8. 15 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 石垣武男 他: "医用画像管理システムと病院情報システムとの統合・名古屋大学医学部附属病院の現状と構想" Medical Diagnostic Technology. 15(4). 375-379 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mitsuru Ikeda,et al: "Evaluation of a neural network classifier for pancreatic masses based on CT findings." Computeried Medical Imaging and Graphics. 21(3). 175-183 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Shunji Koyama,et al: "Breast ultrasonography:Computer-aided diagnosis using fuzzy inference" J Ultrasound Med. 16. 665-672 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Rie Nimi,et al: "Eye-tracking device comparisons of three methods of magnetic resonance image series displays." J Digit Imaging. 10(4). 147-151 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takeo Ishigaki: "Is color CRT chest iamges available in PACS environment? Proceedings of the 11th leternational Symposium and Exhibition.CAR'97" Excepta Medica lntemational Congress Series. 969. 1134 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Oda N,et al: "Evaluation of an aoutomatic-mode image processing method in chest computed radiography." Acad Radiol. 4. 558-564 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Nishimura K,et al: "Comparison of different computed tomography scanning methods for quantifying emphysema." J Thorac Imaging. 13. 193-198 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mingming Zhang,et al: "Evaluation of blood flow patterns with dynamic CT." Radiology. 205(2). 471-478 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Honda O,et al: "Nakamura H.Visualization of air-trapping area with expiratory CT in hypersensitivity pneumonitis." Radiation Medicine. 16. 293-295 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 島本佳寿広 他: "CT及びMRIのCRT診断に適した画像表示装置の開発" INNERVISION. 11(No.8). 57 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Niimi R,Shimamoto K,: "Eye-tracking device comparisons among three kinds of magnetic resonance image series displays" Journal of Digital Imaging. 10. 147-151 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Shimamoto K,Niimi R: "CRT viewing station for MR interpretation : PACS at Nagoya University Hospital-thrid report" 日獨医報. 42. 158-159 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 石垣武男,他: "診断行動原理に基づいた画像診断ワークステーションの開発" INNERVISION. 12・8. 15 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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