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British Journal of Radiology (1992) 65, 668-671
© 1992 British Institute of Radiology
doi: 10.1259/0007-1285-65-776-668
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What is the clinical disadvantage of discarding old radiographs? Survey of patients not re-examined for a long time

Y. Oyama, MD K. Imamura, Dsc H. Ashida, MD Y. Nakajima, MD T. Itoh, MD M. Saeki, MD Y. Kikuchi H. Matsumoto and T. Ishikawa, MD

Department of Radiology, St Marianna University School of Medicine, Kawasaki, Japan

The clinical disadvantage of discarding old radiographs was evaluated in patients who had not been re-examined for more than 8 years after their last radiological examination, 38 772 in total. During the 1 year survey, 158 (0.41%) of them underwent re-examination after a long interval. Retrospective evaluation revealed that in only 12 patients (0.032%) were the old films useful. This survey suggested that the clinical risk of not referring to films more than 8 years old would be less than 0.049%. We consider this acceptable, and have formulated new guidelines of storage of films.

Key Words: X-ray films • Storage • Clinical usefulness • Risk

Received for publication July 29, 1991. Revision received November 19, 1991. Accepted for publication January 14, 1992.






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