study of ablation efficacy of 3660 mbq, ¹³¹i in treatment of thyroid carcinoma at the iodine therapy unit of nuclear medicine department, tehran university of medical sciences

although the basic question of ablative threshold dose for ablation of thyroid remnant after surgery yet remains unanswered. but radioiodine therapy is being used as a standard method of treatment. in present research, treatment responces for 100 patients with thyroid cancer treated with 3660 mbq of ¹³¹i were studied. significant response differences between female group (66%) and male group (34%) for t.s.h and tg measurements and also for area of thyroid remnant were not observed. effects of prescribed activities were studied and for radiation protection as well as the patients socioeconomic status, prescription of low levels of ¹³¹i activities (<1110 mbq) for ablation of thyroid remnant is recommended.