金属节育环与局部进展期宫颈癌四野盒式照射剂量分布关系  

Relationship between metal contraceptive ring and dose distribution with box technique for locally advanced cervix cancer

作　　者：张建文 许锦辉 杨金平 何娅 庞浩文 杨波 

机构地区：[1]四川医科大学附属第一医院肿瘤科,四川泸州646000

出　　处：《现代肿瘤医学》2016年第5期802-804,805,共4页Journal of Modern Oncology

基　　金：四川省卫生计生委科研基金(编号:11062)

摘　　要：目的:分析金属节育环与局部进展期宫颈癌四野盒式照射技术放疗剂量分布关系。方法:10例局部进展期宫颈癌分为金属节育环组和无金属节育环组,行增强模拟定位CT扫描,在TPS计划系统勾画靶区和危及器官,设置四野放疗计划。放射源为6MV-X线。结果:靶区和危及器官剂量两组无统计学差异(P>0.05)。结论:金属节育环对放射线剂量影响小于5%,无临床意义。Objective: To evaluate the relationship between metal contraceptive ring and dose distribution with four fields box of types in teletherapy for locally advanced cervix cancer. Methods: All 10 cases were divided into contraceptive ring and non- contraceptive ring groups. Enhanced simulation CT scan were used respectively,and transmited to TPS plan system. Describing targets and organs at risk and designing our fields box of types in teletherapy radiation plan with 4 fields. Radiation source was 6MV- X- ray. Results: There were no significant differences for targets and organs at risk dose between contraceptive ring and non- contraceptive ring groups( P > 0. 05). Conclusion: The dosage change caused by metal contraceptive ring is far less than clinically limited 5% dosage deviation,and no clinical significance.

关 键 词：宫颈癌 节育环 四野盒式照射 放射治疗 

分 类 号：R737.33[医药卫生—肿瘤]