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直肠癌术前放疗中静态调强放疗与螺旋断层放疗的剂量学比较 被引量:1

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摘要 术前同步放化疗是局部中晚期直肠癌的首选治疗方法。近年来,调强放疗技术(IMRT)已广泛应用于直肠癌术前放疗,IMRT较三维适形放疗技术(3D—CRT)能减少小肠等组织的照射剂量,减少腹泻等不良反应的发生率。螺旋断层放疗技术(HT)应用于直肠癌术前放疗最近也有报道,研究结果显示,HT比3D—CRT能显著降低直肠癌术前放疗中小肠、膀胱、骨盆及股骨头的照射剂量。但目前国内外尚无比较静态IMRT与HT应用于直肠癌术前放疗的系统研究。本研究探讨了7野IMRT、9野IMRT和HT的剂量分布特点,为临床上选择直肠癌术前放疗方法提供参考。
出处 《中华放射医学与防护杂志》 CAS CSCD 北大核心 2014年第11期857-859,共3页 Chinese Journal of Radiological Medicine and Protection
基金 苏州市科技发展计划项目(SYS201342).
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