Radiation-hygienic estimation of interstitial gamma therapy conducted according to principle of subsequent introduction of radioactive sources

A comparative study of two radiation-hygienic methods of interstitial gamma-therapy: with subsequent introduction of radioactive needles of a standard type; with subsequent manual introduction of 60Co sources have been carried out. Chronometry-dosimetric methods of investigation and the methods of individual dosimetry underlie the studies. The obtained data showed, that doses of irradiation to which medical personnel is subjected during the use of the method of subsequent manual introduction of the active sources are 3-4 times lower, than those during the introduction of standard radioactive needles with a higher quality of the procedure performance, ensuring a good therapeutic effect. All this makes it possible to consider interstitial gamma-therapy with the use of the principle of subsequent introduction of the source to be a more perspective method than interstitial gamma-therapy with the use standard radioactive needless 60Co