[Comparison of the dorsal position with the semi-lateral position for irradiation of the breast].

In breast-conserving therapy of the mamma, patients are irradiated in a dorsal or hemi-lateral position. Both positioning techniques were investigated in twelve patients and then compared in order to assess the effect of the position on the dose distribution. It was shown that, in dependence on the individual conditions, both irradiation techniques can be used to optimize the dose distribution.