Bergamini C, Marengo M, Laudicina L, Mazzotti G, Dondi M
Radiol Med. 1986 Sep;72(9):656-9.
Radionuclide impurities can significantly increase the absorbed dose in Nuclear Medicine examinations. The aim of this study is to evaluate the dose of Tl-200 and Tl-202 in patients injected with Tl-201 for myocardial scintigraphy. All relevant nuclear and biological data are reported; Thallium distribution in the body is then discussed with particular regard to the gastro-intestinal tract. Since MIRD Committee has not published "S" values for Tl-200 and Tl-202, these have been calculated by a computer code and are reported. The absorbed dose for these Thallium isotopes is presented. For example, kidney doses in Gy/GBq are 0.29 (Tl-200), 0.27 (Tl-201) and 0.97 (Tl-202). The total dose increase for a 2% presence of Tl-202 is about 11%.
放射性核素杂质会显著增加核医学检查中的吸收剂量。本研究的目的是评估注射Tl - 201进行心肌闪烁显像的患者体内Tl - 200和Tl - 202的剂量。报告了所有相关的核数据和生物学数据；随后特别针对胃肠道讨论了铊在体内的分布情况。由于MIRD委员会尚未公布Tl - 200和Tl - 202的“S”值，这些值已通过计算机代码计算得出并予以报告。给出了这些铊同位素的吸收剂量。例如，肾脏剂量以Gy/GBq为单位分别是0.29（Tl - 200）、0.27（Tl - 201）和0.97（Tl - 202）。当存在2%的Tl - 202时，总剂量增加约11%。
