patients with a variety of thyroid disorders and 10 patients of non-thyroid-diseases performed routine thyroid foraging 30 min after an intravenous injection of 74-185MBq 99mTc pertechnetate. Thyroid function was estimated with thyroid/background ratio. The results showed that the thyroid uptake ratio had good correlation both with the thyroid uptake rate of 3
24h 131 I (n= 103) and 30min 99mTc pertechnetate (n=96) (r=0.74- 0.83). The thyroid uptake ratio in groups of hyperthyroidism
euthyroid and hypothyroidism
were 17.8 ± 1.8
7.2 ± 0.6 and 3.4 ± 0.9respectively(P<0.01 using the t-test). Thereby
it could be used for the rapiddiagnosis of thyroid function.