[Formation of dose fields in local irradiation of cancer of the prostate]

The authors compare dose distributions in local irradiation of prostatic cancer using moving methods on distant gamma-units while taking and not taking into account individual structure of body section and bone structures. They propose problems of choice of optimum conditions of gamma-beam therapy in localized prostatic cancer and their solution. Optimum irradiation designs have been found preferable. When individual dose field calculations are impossible to implement, rotational 360 degree irradiation with correction for 8% and absorption in the table of a gamma-therapeutic unit is recommended.