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目的研究临床核医学治疗中131I所致辐射剂量,为临床放射防护提供依据。方法将34例接受131I治疗的甲状腺癌患者随机分为两组,分别由两组医师和护士进行治疗和护理,每组由3名医师和5名护士组成,对照组采用常规治疗防护措施,观察组采用综合治疗防护措施,比较两组患者治疗后131I的全身有效剂量和甲状腺有效剂量,以及相应两组医师和护士工作一年所受辐射剂量。结果两组患者的全身有效剂量和甲状腺有效剂量组间比较无统计学差异,P>0.05,而观察组的医师和护士的工作一年所受辐射剂量低于对照组,P<0.05。结论采用综合防护措施可以有效减少接受131I治疗的患者对其他人员的辐射,从而提高核医学工作人员的安全性。
Objective To study the radiation dose induced by 131I in clinical nuclear medicine and provide the basis for clinical radiological protection. Methods Thirty-four patients with 131I-treated thyroid cancer were randomly divided into two groups. They were treated and nurses by two groups of physicians and nurses. Each group consisted of three doctors and five nurses. The control group was treated with routine protective measures and observed Group adopted comprehensive treatment and protective measures to compare the effective dose of 131I and thyroid effective dose of 131I after treatment in two groups and the dose of radiation received by the two groups of doctors and nurses for one year. Results There was no significant difference between the effective dose of the two groups and the effective dose of thyroid in the two groups (P> 0.05). However, the radiation dose of doctors and nurses in the observation group was lower than that of the control group for one year (P <0.05). Conclusion The comprehensive protective measures can effectively reduce the radiation of other 131I-treated patients to improve the safety of nuclear medicine staff.