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British Journal of Radiology (1975) 48, 963-967
© 1975 British Institute of Radiology
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The British Journal of Radiology, Vol 48, Issue 576 963-967, Copyright © 1975 by British Institute of Radiology

ARTICLES

Radiation dosage to the breast in well-women screening surveys

DL Asbury and PG Barker

The D.H.S.S. is supporting research in several centres to determine the feasibility of establishing a nationwide Breast Cancer Screening Programme. This paper answers the questions "What is the radiation dose produced by mammography, and is it safe?". In the context of well-women screening surveys a maximum skin dose of 2 R has been recommended. The variation of dose across the breast surface is recorded and the reasons for this enumerated. The lowest mean dose recorded with industrial quality film was 4-9 R, so that such fine-grain film cannot be used for this purpose. Doses within the recommended safety limit are achieved by the use of vacuum-packed film-screen combinations. The new rare-earth phosphor screens produce the lowest dose (0-2 R). There was no significant gonad dose. It is concluded that mammographic examination of well-women can be performed at safe radiation levels.




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