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1994 Fiscal Year Final Research Report Summary

The Analysis for 3 Dimensional Structure of Pulmonary Acinus ; the Approach for the Model on Computer Graphics.

Research Project

Project/Area Number 05404038
Research Category

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

Allocation TypeSingle-year Grants
Research Field Radiation science
Research InstitutionOsaka University

Principal Investigator

IKEZOE Jumpei  Osaka University, Radiology, Associate Professor, 医学部, 助教授 (70115989)

Co-Investigator(Kenkyū-buntansha) KONDOH Hiroshi  Osaka University, Radiology, Associate Professor, 医学部, 助手 (70186857)
ARISAWA Jun  Osaka University, Radiology, Associate Professor, 医学部, 助教授 (40144513)
NAITOH Hiroaki  Osaka University, Radiology, Associate Professor, 医学部, 助教授 (60217627)
Project Period (FY) 1993 – 1994
Keywordshigh-resolution CT / intralobular reticular opacity / perilobular opacity / spared lobule / image analysis / Wavelet transformation / Laplacian-Gaussian filter / fractal analysis
Research Abstract

The results of this research were composed of two parts as follows.
1. Radiologic-Pathologic Correlation.
At first, we proved the intralobular reticular opacity on high-resolution CT was made by not only interstitial cange but also alveolar filling process. In addition that, we found that the net of reticular opacity located in periaciner area. Next, perilobular opacity on high-resolution CT was able to be composed just of perilobular alveolar abnormality. Finally, we proved that spared lobule on high-resolution CT had the same pathologic findings as its surrounding abnormal lesions. This phenomenon was caused by the difference of disease profusion, the difference of drainage, and the difference of time.
2. Image Analysis by Computers.
At first, we applied the Wavelet Transformation to image compression of chest radiographs. This method may be available in clinical practice. Next, we established image analyzing system for interstitial lung abnormalities by using Laplacian-Gaussian filter and showed the usefulness and limitation of this method. Finally, we applied the fractal analysis to both chest radiographs and high-resolution CT images and obtained hopeful results.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] Shoji Kido: "Interpretation of subtle interstitial lung abnormuliti" Radiology. 187. 527-533 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shoji Kido: "An image analyzing system for interstitial lung abnormulities in chest rudiogruphy." Investigative Radiology. 29. 172-177 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shoji Kido: "Fractal analysis of interstitial lung abnormalties in chest radiography" Radio Graphics. 15. 1457-1464 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 上甲 剛: "高分解能CTでみられる小葉辺縁性陰影" 臨床放射線. 41. 119-127 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shoji Kido: "Interpretation of subtle interstitial lung abnormalities" Radiology. 187. 527-533 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shoji Kido: "An image anlyzing system for interstitial lung abnoemalities in chest radiography" Investigative Radiology. 29. 172-177 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shoji Kido: "Fractal analysis of interstitial abnormalities in chest radiography" RadioGraphics. 15. 1457-1464 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeshi Johkoh: "Perilobular opacity on high-resolution CT" Japanses Clinical Radiology. 41. 119-127 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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