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Development of a digital duplication system for portable chest radiographs

  • Kenneth R. Hoffmann
  • Kunio Doi
  • Heber MacMahon
  • Maryellen L. Giger
  • Robert M. Nishikawa
  • Xin-Wei Xu
  • Lian Yao
  • Akiko Kano
  • Michael Carlin
A Technical Note

Abstract

To provide high-quality duplicate chest images for the intensive care units, we have developed a digital duplication system in which film digitization is performed in conjunction with nonlinear density correction, contrast adjustment, and unsharp mask filtering. This system provides consistent image densities over a wide exposure range and enhancement of structures in the mediastinum and upper abdominal areas, improving visibility of catheters and tubes. The image quality is often superior to that of the original radiograph and is more consistent from day to day. Repeat rates for portable chest radiographs have been reduced by more than a factor of two since implementation of digitization in December 1991, and the number of repeat examinations caused by exposure errors have been substantially reduced.

Keywords

Radiology Information System Density Correction Film Digitization Unsharp Mask Portable Chest 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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Copyright information

© Society for Imaging Informatics in Medicine 1994

Authors and Affiliations

  • Kenneth R. Hoffmann
    • 1
  • Kunio Doi
    • 1
  • Heber MacMahon
    • 1
  • Maryellen L. Giger
    • 1
  • Robert M. Nishikawa
    • 1
  • Xin-Wei Xu
    • 1
  • Lian Yao
    • 1
  • Akiko Kano
    • 1
  • Michael Carlin
    • 1
  1. 1.Kurt Rossmann Laboratories for Radiologic Image Research, Department of RadiologyThe University of ChicagoChicago

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