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在碘的放射性同位素中,~(123)Ⅰ与~(131)Ⅰ的核物理特性,明显不同。~(123)Ⅰ具有半衰期短(13.3小时),不释放β粒子的优点,因而使甲状腺的受照剂量仅为使用相同强度~(131)Ⅰ的1/4。甲状腺吸碘试验78例;显像149例。年龄18～69岁,其中女128例。吸碘试验分三组:第一组15例,空腹同时口服25μCi~(123)Ⅰ和10μCi~(131)Ⅰ,分别测2、4、24小时甲状腺吸碘率。第二组23例,先用~(123)Ⅰ,经15～30天,再用(131)Ⅰ研究吸碘功能,临床上未见本组病例甲状腺有任
Among iodine radioisotopes, the nuclear physics characteristics of ~ (123) Ⅰ and ~ (131) Ⅰ are obviously different. The ~ (123) Ⅰ has the advantage of short half-life (13.3 hours) and does not release β particles, so that the dose of thyroid gland is only 1/4 of the same intensity of ~ (131) Ⅰ. 78 cases of thyroid iodine absorption test; Imaging 149 cases. Aged 18 to 69 years, of whom 128 cases of women. The iodine intake test was divided into three groups: the first group of 15 cases, oral administration of 25μCi ~ (123) Ⅰ and 10μCi ~ (131) Ⅰ fasting, respectively, measured 2,4,4 hours of thyroid iodine uptake rate. The second group of 23 cases, first with ~ (123) Ⅰ, after 15 to 30 days, and then (131) Ⅰ study iodine function, no clinical cases of thyroid cancer