ABSTRACT
Four different frontal planes have been evaluated for their usefulness in considering the dose distribution from intracavitary applications for carcinoma of the uterine cervix, in relation to the subsequent planning of supplementary external beam therapy. For the primary tumour and its immediate zone of direct invasion the most useful planes are those passing through the radioactive sources in the body of the uterus. Not one of the planes examined gave satisfactory information concerning the dose in the regional lymph node areas. In order to combine the dose distributions from intracavitary and supplementary external beam irradiation, it is found that every case must be considered individually, particularly in regard to the degree of anterversion or retroversion of the uterus. The dose in the lymph nodes may be calculated directly from coordinates determined by the authors, for each specific regional lymph node group.
