Abstract
Proceedings of the British Institute of RadiologyPublished Online:29 May 2014https://doi.org/10.1259/0007-1285-42-501-718SectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InEmail AboutAbstractAt present it is difficult or impossible to compare the biological effects of radiotherapy to the cervix given by different regimes.(A) For intermittent radiation this difficulty may be overcome by introducing a new unit (not previously discussed in this journal) called rad equivalent therapy (ret) which can be calculated as follows:Total dose (in rads) = NSD (in ret) × N0·24 × T0·11 . (1) (where NSD=nominal standard dose, N=number of fractions, T=time in days), (Ellis, 1968; 1969). The NSD is the tolerance level for the normal tissues as used clinically. It depends on dosimetry and clinical judgment. In Oxford we use 1,800 ret. Previous article Next article FiguresReferencesRelatedDetailsCited byRadiation reactions in cervical cancer therapyAmerican Journal of Obstetrics and Gynecology, Vol. 111, No. 6 Volume 42, Issue 501September 1969Pages: 641-720 © The British Institute of Radiology History Published onlineMay 29,2014 Metrics Download PDF
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