[Local irradiation planning in prostatic cancer with the use of optimized dosage field variants]. / Planirovanie lokal'nogo oblucheniia raka predstatel'noi zhelezy s ispol'zovaniem optimizirovannykh variantov doznykh polei.

A method of dosimetric planning of multifield local irradiation of prostatic cancer using a file of optimized dose fields was proposed (the fields were computed for concrete patients). Basic charts were used to choose a necessary dose field, then the time of irradiation is computed in present directions for each concrete patient. The method was tested during the treatment of 19 patients who were given a course of radiotherapy in an outpatient setting. A continuous course of radiotherapy at a dose of 70-74 Gy was delivered. Radiation reactions of the rectum were insignificant, and they were eliminated without discontinuation of a course of irradiation.

[Formation of dose fields in local irradiation of cancer of the prostate]. / Formirovanie doznykh polei pri lokal'nom obluchenii raka predstatel'noi zhelezy.

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.