[The practical application of computer dosimetry in gynaecological radiotherapy. 1,200 cases studied between 1968 and 1976 of the Gustave-Roussy institute (author's transl)].

Experience gained since 1970 by the study of 1,200 cases in which computerised dosimetry was used has led to the proposition of a reliable and useful method. The results are expressed per 24 hours of exposure in numerical form with regard to reference points, as well as in the form of drawn isodose curves in three different planes of reference: sagittal, frontal oblique by sources and frontal oblique passing by the plane of pelvic lymphatics. The authers recall the definition of reference points: bladder, rectum and pelvic walls. Using three typical examples, the aid provided by dosimetry is described. The concept of a "radiotherapy identity card" as a means of expressing the dose given is discussed. Comparison between dosimetric results and the results of treatment is encouraging in terms of the continued and fore general use of the method.