纳米铁核素内照射治疗肝癌的吸收剂量估算

Estimation of Internal Irradiation Absorbed Dose for Nanometer-iron Nuclide Therapy of Liver Cancer

目的:探讨纳米铁核素应用于内照射治疗的两种常用方式,以及两种方式下放射性纳米铁在体内的剂量行为。方法:选取衰变时发射β射线的纳米铁核素,分别经动脉注入肝脏和经皮穿刺瘤内直接注射入肝脏。结果:纳米铁核素能对肝组织产生较大的辐射。结论:其肝组织的吸收剂量要根据其采用的治疗方式,使用不同的估算方法。

Objective ：To study the two common method of internal irradiation for nanometer-iron nuclide, and how to estimation of the absorbed dose for each of them. Methods： We chose the nanometer-iron nuclide emitting β-ray during the decay period, Respectively, Arterial injected into the liver or percutaneous puncture direct inject into the liver. Results： Through the formula, a few nanometer-iron nuclide can produced greater radiation. Conclusion： The estimation of absorbed dose depends on the therapy method.