Wellner U, Schicha H
Klinik und Poliklinik für Nuklearmedizin, Universität zu Köln, FRG.
Nuklearmedizin. 1993 Jun;32(3):149-55.
This paper deals with the calculation of doses for organs of special interest under 131I treatment of thyroid diseases. Also the effective dose equivalent to the body of the patient, exclusive of the thyroid, is given. The ratio between the exposure by self-irradiation and the exposure from another patient in 2 m distance both having undergone 131I treatment with 50% uptake, is about 1000:1. Therefore positioning of a lead shield between two such patients in the same room is, from the point of view of radiation protection, unnecessary. A complete mathematical description of iodine distribution in a nuclear medicine ward and its liquid waste storage plant is given. The use in the authors' own department of these equations is demonstrated. Computer programs for additional calculations are available.
本文论述了在甲状腺疾病的¹³¹I治疗中，对特殊感兴趣器官的剂量计算。同时还给出了不包括甲状腺在内的患者身体的有效剂量当量。两名均接受了¹³¹I治疗且摄取率为50%的患者，自辐照剂量与相距2米的另一名患者的辐照剂量之比约为1000:1。因此，从辐射防护的角度来看，在同一房间内的两名此类患者之间放置铅屏蔽是没有必要的。文中给出了核医学病房及其液体废物储存厂中碘分布的完整数学描述，并展示了作者所在科室对这些方程的使用情况。此外还有用于进一步计算的计算机程序。
