食管癌放射治疗中对正常组织的防护

Protection of normal tissue in the radiotherapy for esophageal carcinoma

放射治疗在食管癌的治疗中占有相当重要的地位。随着科学技术的发展与进步,人们在关心肿瘤杀伤情况的同时,越来越关注机体健康组织的辐射损伤程度。现从辐射防护的角度出发,简述在食管癌的放射治疗中运用重离子束、三维适形放射治疗和影像学指导的放射治疗等技术对食管周围正常组织的防护所做出的贡献。

Radiotherapy is an important contributor to curative treatment of esophageal carcinoma.With the develop-ment and improvement of science and technology,people have paid more attention to the radiation damage of normal tis-sue while caring about all malignant cells killed.From the point of view of radiation protection,this paper aims to show that advanced technologies including heavy iron beams 、three-dimensional conformal radiation therapy and imaging guided radiotherapy have contributed directly and indirectly to development of protection in esophageal carcinoma.