共 3 条
螺旋断层与常规静态调强放疗前列腺癌的剂量学研究
被引:8
作者:

尹雷明
论文数: 0 引用数: 0
h-index: 0
机构: 解放军总医院放射治疗科

周桂霞
论文数: 0 引用数: 0
h-index: 0
机构: 解放军总医院放射治疗科

徐寿平
论文数: 0 引用数: 0
h-index: 0
机构: 解放军总医院放射治疗科

鞠忠建
论文数: 0 引用数: 0
h-index: 0
机构: 解放军总医院放射治疗科

解传彬
论文数: 0 引用数: 0
h-index: 0
机构: 解放军总医院放射治疗科
机构:
[1] 解放军总医院放射治疗科
来源:
关键词:
前列腺肿瘤;
体层摄影术,螺旋计算机;
放射疗法,调强适形;
治疗计划;
剂量学;
D O I:
暂无
中图分类号:
R737.25 [前列腺肿瘤];
学科分类号:
100214 [肿瘤学];
摘要:
目的:研究螺旋断层放疗(helical tomotherapy,HT)和常规静态调强放射治疗(IMRT)在前列腺癌治疗中的剂量学特点及危及器官保护方面所存在的差异。方法:选择10例已行螺旋断层放射治疗的早期前列腺癌患者的CT图像,统一勾画肿瘤靶体积及危及器官后,分别传输至螺旋断层放疗计划系统和常规静态调强治疗计划系统,统一给予肿瘤处方剂量76Gy/35次。结果:HT计划的剂量均匀性指数与IMRT计划相似,HT计划在直肠和膀胱的V20、V30、V40和V50均比IMRT计划小;双侧股骨头在V20、V30和V40均显著低于IMRT计划。结论:两种治疗计划的剂量学分布均能满足临床治疗所需,但HT比常规静态IMRT更陡峭的剂量梯度,并可更好地保护肿瘤周围的器官。
引用
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页码:315 / 317
页数:3
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