[Radiotherapy for carcinoma of the cervix by intermittent sessions with deferred loading using Cobalt 60 or Caesium 137 (author's transl)].

Fractioning in gynaecological radiotherapy is a tolerance factor which may usefully be exploited in after loading. The advantage of fractioning is that it makes it possible to considerably increase the output of the projection apparatus (Curietron) and to avoid protection of the rooms : the patient retains the applicator in situ during the hospital stay and her bed is simply taken into the protected application room. With a source of 1 to 1.

[T.D.F. (time-dose-fractioned irradiation) and tolerance to low flow and low fractioned irradiation (author's transl)].

1. The factor (T.D.

[Dose of tissue tolerance, dose of tumour sterilisation in continuous and discontinuous irradiation (author's transl)].

In the radiotherapy of cancer, two conditions are necessary:-- 1 degree sterilisation of the tumor; 2 degrees safeguard of surrounding tissues. In discontinuous irradiation, sterilisation depends on the administration of a certain tumour-dose within a suitable period or number of sessions. At the rate of 5 sessions weekly, the following dose-number law may be formulated (ELLIS): DT = 2,500.