[The experimental brachytherapy of rhabdomyosarcoma R1H in the rat with iodine-125 seeds].

Rhabdomyosarcoma R1H of the rat with a volume of 1.2 cm3 were treated by implanting three to eight iodine-125 seeds (20.4 MBq). While implantation of inactive seeds had no influence on tumour growth, implantation of three or four seeds caused a reduction in tumour growth rate. Local tumour control was achieved in 71 and 80% of the tumours after implantation of seven and eight seeds, respectively.