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[Discarding medical images and its evaluation]

K Imamura1, Y Oyama, T Ishikawa

  • 1Department of Radiology St. Marianna University.

Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica
|March 25, 1993
PubMed
Summary

A ten-year medical image storage system was evaluated. Re-issuing discarded film jackets for patient re-examinations and research is infrequent, supporting the system

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Area of Science:

  • Medical Imaging
  • Health Information Management
  • Archival Science

Context:

  • Hospitals often face challenges managing long-term storage of medical images.
  • A ten-year retention policy for medical images was implemented in 1990.
  • This policy involves discarding film jackets older than ten years, with exceptions for permanent storage.

Purpose:

  • To evaluate the effectiveness and efficiency of a ten-year medical image storage and retrieval system.
  • To assess the frequency of re-issuing discarded film jackets.
  • To analyze the accessibility and cost-effectiveness of the information system.

Summary:

  • A survey evaluated a ten-year medical image storage system implemented in 1990.
  • Approximately 6.5% of film jackets were designated for permanent storage.
  • Analysis revealed low re-issue rates for discarded jackets (405/year) and repository recalls (2,200/year), indicating system efficiency.

Impact:

  • The study demonstrates that a ten-year retention policy for medical images is generally effective.
  • The system has been successfully integrated into daily hospital routines.
  • The concept of "cost-of-information" was proposed for evaluating information system efficiency.

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