This study aimed to determine the effective doses of caregivers taking care of non-cancerous patients treated with iodine-131 (I-131). Patients (administered 185–1110 MBq of I-131) were given specific radiation safety instructions (RSI). Afterwards, caregivers were provided with thermoluminescent (TLD) dosimeter badges to be worn for 12–28 days when taking care of the patients. At the end of this period, TLD measurements were obtained. Results showed that caregivers’ mean effective dose was 0.15 ± 0.15 mSv, which is far less than the international recommendations of 5 mSv. Furthermore, the effective doses had no significant correlation with administered I-131 activity to the patients, distance from the hospital, caregivers’ age, educational level and mode of transport. Our study showed that radiation doses received by caregivers of non-cancerous patients are higher than that of cancerous patients, nevertheless their received doses were within the international limits, thereby indicating good compliance by the caregivers to RSI.

中文翻译：

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对在核医学科接受I-131治疗的非癌性甲状腺病患者进行照护的家庭成员的辐射剂量评估。

这项研究的目的是确定照顾者的有效剂量，以照料用碘131（I-131）治疗的非癌性患者。对患者（I-131的185-1110 MBq给药）给予了特定的辐射安全说明（RSI）。此后，为护理人员提供了热发光（TLD）剂量计徽章，在照顾患者时应佩戴12-28天。在此期间结束时，获得了TLD测量值。结果表明，护理人员的平均有效剂量为0.15±0.15 mSv，远低于国际建议的5 mSv。此外，有效剂量与对患者的I-131活性，距医院的距离，护理人员的年龄，受教育程度和运输方式均无显着​​相关性。